Remove leftovers from favorite action.

Signed-off-by: Ivan Sein <ivan@nextcloud.com>

NextcloudTalk/RoomInfoTableViewController.m

@@ -89,7 +89,6 @@ typedef enum DestructiveAction {
 
 typedef enum ModificationError {
     kModificationErrorRename = 0,
-    kModificationErrorFavorite,
     kModificationErrorChatNotifications,
     kModificationErrorCallNotifications,
     kModificationErrorShare,
@@ -449,10 +448,6 @@ typedef enum FileAction {
             errorDescription = NSLocalizedString(@"Could not rename the conversation", nil);
             break;
             
-        case kModificationErrorFavorite:
-            errorDescription = NSLocalizedString(@"Could not change favorite setting", nil);
-            break;
-            
         case kModificationErrorChatNotifications:
             errorDescription = NSLocalizedString(@"Could not change notifications setting", nil);
             break;