remove unused variables

Author: dshukertjr

packages/realtime_client/lib/src/realtime_client.dart

@@ -51,7 +51,7 @@ class RealtimeClient {
   String? accessToken;
   List<RealtimeChannel> channels = [];
   final String endPoint;
-  final String httpEndpoint;
+
   final Map<String, String> headers;
   final Map<String, dynamic> params;
   final Duration timeout;
@@ -117,7 +117,6 @@ class RealtimeClient {
                   logLevel == null ? null : {'log_level': logLevel.name},
             )
             .toString(),
-        httpEndpoint = httpEndpointURL(endPoint),
         headers = {
           ...Constants.defaultHeaders,
           if (headers != null) ...headers,

packages/realtime_client/lib/src/types.dart

@@ -408,17 +408,3 @@ class SinglePresenceState {
   @override
   String toString() => 'PresenceState(key: $key, presences: $presences)';
 }
-
-class Channel {
-  final String name;
-  final String inserted_at;
-  final String updated_at;
-  final int id;
-
-  Channel({
-    required this.name,
-    required this.inserted_at,
-    required this.updated_at,
-    required this.id,
-  });
-}