fix after rebase

Signed-off-by: tobiasKaminsky <tobias@kaminsky.me>

app/src/main/java/com/owncloud/android/services/OperationsService.java

@@ -30,7 +30,6 @@ import android.util.Pair;
 import com.nextcloud.client.account.User;
 import com.nextcloud.client.account.UserAccountManager;
 import com.nextcloud.common.NextcloudClient;
-import com.nextcloud.java.util.Optional;
 import com.nextcloud.utils.extensions.IntentExtensionsKt;
 import com.owncloud.android.MainApp;
 import com.owncloud.android.datamodel.ArbitraryDataProvider;