Don't count relationships by there highest id

On block format stores, the relationship id has a different meaning and
is not representative of a "highest possible relationship count".

Since we use that value only for logging the import progress, it is ok
if we end up being slightly inaccurate, so we can use the number of
existing relationship as the upper bound.

Author: knutwalker

compatibility/5-common/neo4j-kernel-adapter/src/main/java17/org/neo4j/gds/compat/_5x/CommonNeo4jProxyImpl.java

@@ -465,21 +465,14 @@ public long getHighestPossibleNodeCount(
     public long getHighestPossibleRelationshipCount(
         Read read, IdGeneratorFactory idGeneratorFactory
     ) {
-        return countByIdGenerator(
-            idGeneratorFactory,
-            RecordIdType.RELATIONSHIP,
-            BlockFormat.INSTANCE.relationshipType,
-            BlockFormat.INSTANCE.dynamicRelationshipType
-        );
+        return read.relationshipsGetCount();
     }
 
     private static final class BlockFormat {
         private static final BlockFormat INSTANCE = new BlockFormat();
 
         private org.neo4j.internal.id.IdType nodeType = null;
         private org.neo4j.internal.id.IdType dynamicNodeType = null;
-        private org.neo4j.internal.id.IdType relationshipType = null;
-        private org.neo4j.internal.id.IdType dynamicRelationshipType = null;
 
         BlockFormat() {
             try {
@@ -490,8 +483,6 @@ private static final class BlockFormat {
                     switch (type.name()) {
                         case "NODE" -> this.nodeType = (org.neo4j.internal.id.IdType) type;
                         case "DYNAMIC_NODE" -> this.dynamicNodeType = (org.neo4j.internal.id.IdType) type;
-                        case "RELATIONSHIP" -> this.relationshipType = (org.neo4j.internal.id.IdType) type;
-                        case "DYNAMIC_RELATIONSHIP" -> this.dynamicRelationshipType = (org.neo4j.internal.id.IdType) type;
                     }
                 }
             } catch (ClassNotFoundException | NullPointerException | ClassCastException ignored) {