Fix lint issues

matrix-sdk-android/src/main/java/im/vector/matrix/android/api/session/widgets/WidgetService.kt

@@ -23,7 +23,6 @@ import im.vector.matrix.android.api.session.events.model.Content
 import im.vector.matrix.android.api.util.Cancelable
 import im.vector.matrix.android.api.session.widgets.model.Widget
 
-
 /**
  * This is the entry point to manage widgets. You can grab an instance of this service through an active session.
  */

matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/integrationmanager/IntegrationManager.kt

@@ -40,7 +40,6 @@ import im.vector.matrix.android.internal.session.widgets.helper.WidgetFactory
 import im.vector.matrix.android.internal.session.widgets.helper.extractWidgetSequence
 import im.vector.matrix.android.internal.task.TaskExecutor
 import im.vector.matrix.android.internal.task.configureWith
-import im.vector.matrix.android.internal.util.StringProvider
 import timber.log.Timber
 import javax.inject.Inject
 

vector/src/main/java/im/vector/riotx/features/home/room/detail/RoomDetailViewState.kt

@@ -16,7 +16,6 @@
 
 package im.vector.riotx.features.home.room.detail
 
-import android.util.SparseArray
 import com.airbnb.mvrx.Async
 import com.airbnb.mvrx.MvRxState
 import com.airbnb.mvrx.Uninitialized

vector/src/main/java/im/vector/riotx/features/widgets/permissions/RoomWidgetPermissionBottomSheet.kt

@@ -20,9 +20,6 @@ import android.os.Build
 import android.text.Spannable
 import android.text.SpannableStringBuilder
 import android.text.style.BulletSpan
-import android.widget.ImageView
-import android.widget.TextView
-import butterknife.BindView
 import butterknife.OnClick
 import com.airbnb.mvrx.MvRx
 import com.airbnb.mvrx.activityViewModel