Remove unused imports

Author: JcMinarro

samplekotlin/src/main/java/com/example/chattutorial/ChannelActivity4.kt

@@ -17,11 +17,9 @@ import com.getstream.sdk.chat.viewmodel.messages.MessageListViewModel.Mode.Threa
 import com.getstream.sdk.chat.viewmodel.messages.MessageListViewModel.State.NavigateUp
 import com.getstream.sdk.chat.viewmodel.messages.bindView
 import io.getstream.chat.android.client.ChatClient
-import io.getstream.chat.android.client.controllers.subscribeFor
 import io.getstream.chat.android.client.events.TypingStartEvent
 import io.getstream.chat.android.client.events.TypingStopEvent
 import io.getstream.chat.android.client.models.Channel
-import io.getstream.chat.android.client.models.name
 
 class ChannelActivity4 : AppCompatActivity() {