Move remaining static properties from BaseRealtime to DefaultRealtime

These properties are only used by the tests and are not part of the
public API. Let’s move them out of BaseRealtime to make it more
tree-shakable.

src/common/lib/client/baserealtime.ts

@@ -9,7 +9,6 @@ import ProtocolMessage from '../types/protocolmessage';
 import { ChannelOptions } from '../../types/channel';
 import ClientOptions from '../../types/ClientOptions';
 import * as API from '../../../../ably';
-import ConnectionManager from '../transport/connectionmanager';
 import { ModulesMap } from './modulesmap';
 
 /**
@@ -40,10 +39,6 @@ class BaseRealtime extends BaseClient {
     Logger.logAction(Logger.LOG_MINOR, 'Realtime.close()', '');
     this.connection.close();
   }
-
-  static Utils = Utils;
-  static ConnectionManager = ConnectionManager;
-  static ProtocolMessage = ProtocolMessage;
 }
 
 class Channels extends EventEmitter {

src/common/lib/client/defaultrealtime.ts

@@ -1,6 +1,9 @@
 import BaseRealtime from './baserealtime';
 import ClientOptions from '../../types/ClientOptions';
 import { allCommonModules } from './modulesmap';
+import * as Utils from '../util/utils';
+import ConnectionManager from '../transport/connectionmanager';
+import ProtocolMessage from '../types/protocolmessage';
 
 /**
  `DefaultRealtime` is the class that the non tree-shakable version of the SDK exports as `Realtime`. It ensures that this version of the SDK includes all of the functionality which is optionally available in the tree-shakable version.
@@ -9,4 +12,8 @@ export class DefaultRealtime extends BaseRealtime {
   constructor(options: ClientOptions) {
     super(options, allCommonModules);
   }
+
+  static Utils = Utils;
+  static ConnectionManager = ConnectionManager;
+  static ProtocolMessage = ProtocolMessage;
 }