Remove unknown UserTopicVisibilityPolicy handling

Author: Cairo09

lib/model/channel.dart

@@ -128,17 +128,14 @@ mixin ChannelStore on UserStore {
   UserTopicVisibilityEffect willChangeIfTopicVisibleInStream(UserTopicEvent event) {
     final streamId = event.streamId;
     final topic = event.topicName;
-
     final UserTopicVisibilityPolicy? visibilityPolicy = event.visibilityPolicy;
     if (ChannelStore._warnInvalidVisibilityPolicy(visibilityPolicy)) {
       return UserTopicVisibilityEffect.none;
     }
-
     final UserTopicVisibilityPolicy policy = visibilityPolicy!;
-
     return UserTopicVisibilityEffect._fromBeforeAfter(
       _isTopicVisibleInStream(topicVisibilityPolicy(streamId, topic)),
-      _isTopicVisibleInStream(policy),);
+      _isTopicVisibleInStream(policy));
   }
 
   static bool _isTopicVisibleInStream(UserTopicVisibilityPolicy policy) {
@@ -170,17 +167,14 @@ mixin ChannelStore on UserStore {
   UserTopicVisibilityEffect willChangeIfTopicVisible(UserTopicEvent event) {
     final streamId = event.streamId;
     final topic = event.topicName;
-
     final UserTopicVisibilityPolicy? visibilityPolicy = event.visibilityPolicy;
     if (ChannelStore._warnInvalidVisibilityPolicy(visibilityPolicy)) {
       return UserTopicVisibilityEffect.none;
     }
-
     final UserTopicVisibilityPolicy policy = visibilityPolicy!;
-
     return UserTopicVisibilityEffect._fromBeforeAfter(
       _isTopicVisible(streamId, topicVisibilityPolicy(streamId, topic)),
-      _isTopicVisible(streamId, policy),);
+      _isTopicVisible(streamId, policy));
   }
 
   bool _isTopicVisible(int streamId, UserTopicVisibilityPolicy policy) {
@@ -584,9 +578,7 @@ class ChannelStoreImpl extends HasUserStore with ChannelStore {
       }
       return;
     }
-
     final UserTopicVisibilityPolicy policy = visibilityPolicy!;
-
     if (policy == UserTopicVisibilityPolicy.none) {
       final forStream = topicVisibility[event.streamId];
       if (forStream == null) return;

test/api/route/channels_test.dart

@@ -60,7 +60,6 @@ void main() {
   });
 
 
-
   test('updateUserTopicCompat when FL >= 170', () {
     return FakeApiConnection.with_((connection) async {
       connection.prepare(json: {});

test/model/channel_test.dart

@@ -516,7 +516,6 @@ void main() {
         await store.setUserTopic(stream1, 'topic', UserTopicVisibilityPolicy.muted);
         // case-insensitivity
         await store.setUserTopic(stream1, 'ToPiC', null);
-
         compareTopicVisibility(store, [
         ]);
       });