.Net Clean-up (#2685)

### Description

All code that was marked as obsolete has been removed.

### Contribution Checklist

<!-- Before submitting this PR, please make sure: -->

- [x] The code builds clean without any errors or warnings
- [x] The PR follows the [SK Contribution
Guidelines](https://github.com/microsoft/semantic-kernel/blob/main/CONTRIBUTING.md)
and the [pre-submission formatting
script](https://github.com/microsoft/semantic-kernel/blob/main/CONTRIBUTING.md#development-scripts)
raises no violations
- [x] All unit tests pass, and I have added new tests where possible
- [x] I didn't break anyone 😄

Author: SergeyMenshykh

dotnet/src/Connectors/Connectors.Memory.Kusto/KustoSerializer.cs

@@ -3,7 +3,6 @@
 using System;
 using System.Globalization;
 using System.Text.Json;
-using Microsoft.SemanticKernel.AI.Embeddings;
 using Microsoft.SemanticKernel.Memory;
 using Microsoft.SemanticKernel.Text;
 
@@ -15,16 +14,16 @@ namespace Microsoft.SemanticKernel.Connectors.Memory.Kusto;
 public static class KustoSerializer
 {
     /// <summary>
-    /// Returns serialized string from <see cref="Embedding{TEmbedding}"/> instance.
+    /// Returns serialized string from an embedding instance.
     /// </summary>
-    /// <param name="embedding">Instance of <see cref="Embedding{TEmbedding}"/> for serialization.</param>
+    /// <param name="embedding">Instance of an embedding for serialization.</param>
     public static string SerializeEmbedding(ReadOnlyMemory<float> embedding)
     {
         return JsonSerializer.Serialize(embedding, s_jsonSerializerOptions);
     }
 
     /// <summary>
-    /// Returns deserialized instance of <see cref="Embedding{TEmbedding}"/> from serialized embedding.
+    /// Returns deserialized instance of an embedding from serialized embedding.
     /// </summary>
     /// <param name="embedding">Serialized embedding.</param>
     public static ReadOnlyMemory<float> DeserializeEmbedding(string? embedding)

dotnet/src/Connectors/Connectors.Memory.Pinecone/IPineconeMemoryStore.cs

@@ -4,7 +4,6 @@
 using System.Collections.Generic;
 using System.Threading;
 using System.Threading.Tasks;
-using Microsoft.SemanticKernel.AI.Embeddings;
 using Microsoft.SemanticKernel.Memory;
 
 namespace Microsoft.SemanticKernel.Connectors.Memory.Pinecone;
@@ -204,10 +203,10 @@ Task RemoveWithFilterAsync(
         CancellationToken cancellationToken = default);
 
     /// <summary>
-    /// Gets the nearest filtered matches to the <see cref="Embedding"/> of type <see cref="float"/>
+    /// Gets the nearest filtered matches to an embedding of type <see cref="float"/>
     /// </summary>
     /// <param name="indexName">The name associated with a collection of embeddings.</param>
-    /// <param name="embedding">The <see cref="Embedding"/> to compare the collection's embeddings with.</param>
+    /// <param name="embedding">The embedding to compare the collection's embeddings with.</param>
     /// <param name="limit">The maximum number of similarity results to return.</param>
     /// <param name="filter"> The filter to apply to the collection.</param>
     /// <param name="minRelevanceScore"></param>
@@ -232,11 +231,11 @@ Task RemoveWithFilterAsync(
         CancellationToken cancellationToken = default);
 
     /// <summary>
-    /// Gets the nearest matches to the <see cref="Embedding"/> of type <see cref="float"/> from the given namespace.
+    /// Gets the nearest matches to an embedding of type <see cref="float"/> from the given namespace.
     /// </summary>
     /// <param name="indexName">The name associated with a collection of embeddings.</param>
     /// <param name="indexNamespace"> The namespace associated with a collection of embeddings.</param>
-    /// <param name="embedding">The <see cref="Embedding"/> to compare the collection's embeddings with.</param>
+    /// <param name="embedding">The embedding to compare the collection's embeddings with.</param>
     /// <param name="limit">The maximum number of similarity results to return.</param>
     /// <param name="minRelevanceScore">The minimum relevance threshold for returned results.</param>
     /// <param name="withEmbeddings">If true, the embeddings will be returned in the memory records.</param>
@@ -252,11 +251,11 @@ Task RemoveWithFilterAsync(
         CancellationToken cancellationToken = default);
 
     /// <summary>
-    /// Gets the nearest match to the <see cref="Embedding"/> of type <see cref="float"/> from the given namespace.
+    /// Gets the nearest match to an embedding of type <see cref="float"/> from the given namespace.
     /// </summary>
     /// <param name="indexName">The name associated with a collection of embeddings.</param>
     /// <param name="indexNamespace"> The namespace associated with a collection of embeddings.</param>
-    /// <param name="embedding">The <see cref="Embedding"/> to compare the collection's embeddings with.</param>
+    /// <param name="embedding">The embedding to compare the collection's embeddings with.</param>
     /// <param name="minRelevanceScore">The minimum relevance threshold for returned results.</param>
     /// <param name="withEmbedding">If true, the embedding will be returned in the memory record.</param>
     /// <param name="cancellationToken">Cancellation token</param>

dotnet/src/SemanticKernel.Abstractions/AI/Embeddings/Embedding.cs

@@ -19,9 +19,9 @@ public static class EmbeddingGenerationExtensions
     /// <typeparam name="TValue">The type from which embeddings will be generated.</typeparam>
     /// <typeparam name="TEmbedding">The numeric type of the embedding data.</typeparam>
     /// <param name="generator">The embedding generator.</param>
-    /// <param name="value">A value from which an <see cref="Embedding{TEmbedding}"/> will be generated.</param>
+    /// <param name="value">A value from which an embedding will be generated.</param>
     /// <param name="cancellationToken">Cancellation token</param>
-    /// <returns>A list of <see cref="Embedding{TEmbedding}"/> structs representing the input <paramref name="value"/>.</returns>
+    /// <returns>A list of embedding structs representing the input <paramref name="value"/>.</returns>
     public static async Task<ReadOnlyMemory<TEmbedding>> GenerateEmbeddingAsync<TValue, TEmbedding>
         (this IEmbeddingGeneration<TValue, TEmbedding> generator, TValue value, CancellationToken cancellationToken = default)
         where TEmbedding : unmanaged

dotnet/src/SemanticKernel.Abstractions/AI/Embeddings/EmbeddingGenerationServiceExtensions.cs

@@ -1,8 +1,6 @@
 // Copyright (c) Microsoft. All rights reserved.
 
-using System;
 using System.Collections.Generic;
-using System.ComponentModel;
 using System.Threading;
 using System.Threading.Tasks;
 using Microsoft.Extensions.Logging;
@@ -185,24 +183,4 @@ Task<SKContext> RunAsync(
     /// <typeparam name="T">Service type</typeparam>
     /// <returns>Instance of T</returns>
     T GetService<T>(string? name = null) where T : IAIService;
-
-    #region Obsolete
-
-    /// <summary>
-    /// App logger
-    /// </summary>
-    [Obsolete("Use Logger instead. This will be removed in a future release.")]
-    [EditorBrowsable(EditorBrowsableState.Never)]
-    ILogger Log { get; }
-
-    /// <summary>
-    /// Create a new instance of a context, linked to the kernel internal state.
-    /// </summary>
-    /// <param name="cancellationToken">Optional cancellation token for operations in context.</param>
-    /// <returns>SK context</returns>
-    [Obsolete("SKContext no longer contains the CancellationToken. Use CreateNewContext().")]
-    [EditorBrowsable(EditorBrowsableState.Never)]
-    SKContext CreateNewContext(CancellationToken cancellationToken);
-
-    #endregion
 }

dotnet/src/SemanticKernel.Abstractions/IKernel.cs

@@ -4,7 +4,6 @@
 using System.Collections.Generic;
 using System.Threading;
 using System.Threading.Tasks;
-using Microsoft.SemanticKernel.AI.Embeddings;
 
 namespace Microsoft.SemanticKernel.Memory;
 
@@ -101,10 +100,10 @@ public interface IMemoryStore
     Task RemoveBatchAsync(string collectionName, IEnumerable<string> keys, CancellationToken cancellationToken = default);
 
     /// <summary>
-    /// Gets the nearest matches to the <see cref="Embedding{Single}"/> of type <see cref="float"/>. Does not guarantee that the collection exists.
+    /// Gets the nearest matches to an embedding of type <see cref="float"/>. Does not guarantee that the collection exists.
     /// </summary>
     /// <param name="collectionName">The name associated with a collection of embeddings.</param>
-    /// <param name="embedding">The <see cref="Embedding{Single}"/> to compare the collection's embeddings with.</param>
+    /// <param name="embedding">The embedding to compare the collection's embeddings with.</param>
     /// <param name="limit">The maximum number of similarity results to return.</param>
     /// <param name="minRelevanceScore">The minimum cosine similarity threshold for returned results.</param>
     /// <param name="withEmbeddings">If true, the embeddings will be returned in the memory records.</param>
@@ -119,11 +118,11 @@ public interface IMemoryStore
         CancellationToken cancellationToken = default);
 
     /// <summary>
-    /// Gets the nearest match to the <see cref="Embedding{Single}"/> of type <see cref="float"/>. Does not guarantee that the collection exists.
+    /// Gets the nearest match to an embedding of type <see cref="float"/>. Does not guarantee that the collection exists.
     /// </summary>
     /// <param name="collectionName">The name associated with a collection of embeddings.</param>
-    /// <param name="embedding">The <see cref="Embedding{Single}"/> to compare the collection's embeddings with.</param>
-    /// <param name="minRelevanceScore">The minimum cosine similarity threshold for returned results.</param>
+    /// <param name="embedding">The embedding to compare the collection's embeddings with.</param>
+    /// <param name="minRelevanceScore">The minimum relevance threshold for returned results.</param>
     /// <param name="withEmbedding">If true, the embedding will be returned in the memory record.</param>
     /// <param name="cancellationToken">The <see cref="CancellationToken"/> to monitor for cancellation requests. The default is <see cref="CancellationToken.None"/>.</param>
     /// <returns>A tuple consisting of the <see cref="MemoryRecord"/> and the similarity score as a <see cref="double"/>. Null if no nearest match found.</returns>