chore(repo): fix analysis

packages/stream_chat_flutter_core/lib/src/stream_chat_core.dart

@@ -1,7 +1,6 @@
 import 'dart:async';
 
 import 'package:connectivity_plus/connectivity_plus.dart';
-import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:stream_chat/stream_chat.dart';
 import 'package:stream_chat_flutter_core/src/typedef.dart';

packages/stream_chat_flutter_core/lib/src/user_list_core.dart

@@ -2,8 +2,6 @@ import 'dart:convert';
 
 import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
-import 'package:stream_chat/stream_chat.dart';
-import 'package:stream_chat_flutter_core/src/users_bloc.dart';
 import 'package:stream_chat_flutter_core/stream_chat_flutter_core.dart';
 
 ///

packages/stream_chat_flutter_core/test/message_search_bloc_test.dart

@@ -1,8 +1,6 @@
 import 'package:flutter/widgets.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:mocktail/mocktail.dart';
-import 'package:stream_chat/stream_chat.dart';
-import 'package:stream_chat_flutter_core/src/message_search_bloc.dart';
 import 'package:stream_chat_flutter_core/stream_chat_flutter_core.dart';
 
 import 'matchers/get_message_response_matcher.dart';

packages/stream_chat_flutter_core/test/stream_channel_test.dart

@@ -1,7 +1,4 @@
-import 'dart:async';
-
 import 'package:flutter/material.dart';
-import 'package:flutter/widgets.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:mocktail/mocktail.dart';
 import 'package:stream_chat_flutter_core/stream_chat_flutter_core.dart';

packages/stream_chat_flutter_core/test/stream_chat_core_test.dart

@@ -1,6 +1,5 @@
 import 'dart:async';
 
-import 'package:connectivity_plus/connectivity_plus.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:mocktail/mocktail.dart';