🐛 Fix the duplicate local participant

lib/pods/chat/webrtc_manager.dart

@@ -68,19 +68,6 @@ class WebRTCManager {
         'video': true,
       });
       talker.info('[WebRTC] Local stream initialized');
-
-      // Add local participant
-      bool videoEnabled = _localStream!.getVideoTracks().isNotEmpty;
-      WebRTCParticipant localParticipant = WebRTCParticipant(
-        id: _signaling.userId,
-        name: _signaling.userName,
-        userinfo: _signaling.user,
-        isLocal: true,
-        isAudioEnabled: true,
-        isVideoEnabled: videoEnabled,
-      );
-      _participants[_signaling.userId] = localParticipant;
-      _participantController.add(localParticipant);
     } catch (e) {
       talker.error('[WebRTC] Failed to initialize local stream: $e');
       rethrow;
@@ -315,8 +302,6 @@ class WebRTCManager {
         track.enabled = enabled;
       }
     }
-
-    _participants[_signaling.userId]?.isAudioEnabled = enabled;
   }
 
   Future<void> toggleCamera(bool enabled) async {
@@ -325,8 +310,6 @@ class WebRTCManager {
         track.enabled = enabled;
       });
     }
-
-    _participants[_signaling.userId]?.isVideoEnabled = enabled;
   }
 
   List<WebRTCParticipant> get participants => _participants.values.toList();