SettingsActivity flag added to preserve activity state

Signed-off-by: alperozturk <[email protected]>

Author: alperozturk96

app/src/main/java/com/owncloud/android/ui/activity/FileDisplayActivity.kt

@@ -126,7 +126,6 @@ import com.owncloud.android.ui.events.SearchEvent
 import com.owncloud.android.ui.events.SyncEventFinished
 import com.owncloud.android.ui.events.TokenPushEvent
 import com.owncloud.android.ui.fragment.EmptyListState
-import com.owncloud.android.ui.fragment.ExtendedListFragment
 import com.owncloud.android.ui.fragment.FileDetailFragment
 import com.owncloud.android.ui.fragment.FileFragment
 import com.owncloud.android.ui.fragment.GalleryFragment