Fixed minor bugs revealed by ESLint warnings

Signed-off-by: Geoff Gustafson <geoff@linux.intel.com>

Author: grgustaf

src/sdk/conference/channel.js

@@ -466,7 +466,7 @@ export class ConferencePeerConnectionChannel extends EventDispatcher {
 
   _rejectPromise(error) {
     if (!error) {
-      const error = new ConferenceError('Connection failed or closed.');
+      error = new ConferenceError('Connection failed or closed.');
     }
     // Rejecting corresponding promise if publishing and subscribing is ongoing.
     if (this._publishPromise) {

src/sdk/conference/mixedstream.js

@@ -33,7 +33,7 @@ export class RemoteMixedStream extends StreamModule.RemoteStream {
 
     this.settings = StreamUtilsModule.convertToPublicationSettings(info.media);
 
-    this.capabilities = new StreamUtilsModule.convertToSubscriptionCapabilities(
+    this.capabilities = StreamUtilsModule.convertToSubscriptionCapabilities(
         info.media);
   }
 }

src/sdk/conference/streamutils.js

@@ -11,7 +11,7 @@ import * as PublicationModule from '../base/publication.js';
 import * as MediaFormatModule from '../base/mediaformat.js';
 import * as CodecModule from '../base/codec.js';
 import * as SubscriptionModule from './subscription.js';
-
+import Logger from '../base/logger.js';
 
 /**
  * @function extractBitrateMultiplier
@@ -21,7 +21,7 @@ import * as SubscriptionModule from './subscription.js';
  */
 function extractBitrateMultiplier(input) {
   if (typeof input !== 'string' || !input.startsWith('x')) {
-    L.Logger.warning('Invalid bitrate multiplier input.');
+    Logger.warning('Invalid bitrate multiplier input.');
     return 0;
   }
   return Number.parseFloat(input.replace(/^x/, ''));