Remove unused imports

Signed-off-by: Álvaro Brey <alvaro.brey@nextcloud.com>

app/src/main/java/com/owncloud/android/files/services/FileDownloader.java

@@ -54,7 +54,6 @@ import com.owncloud.android.lib.common.network.OnDatatransferProgressListener;
 import com.owncloud.android.lib.common.operations.RemoteOperationResult;
 import com.owncloud.android.lib.common.operations.RemoteOperationResult.ResultCode;
 import com.owncloud.android.lib.common.utils.Log_OC;
-import com.owncloud.android.lib.resources.files.CreateLocalFileException;
 import com.owncloud.android.lib.resources.files.FileUtils;
 import com.owncloud.android.operations.DownloadFileOperation;
 import com.owncloud.android.operations.DownloadType;

app/src/main/java/com/owncloud/android/utils/ErrorMessageAdapter.java

@@ -26,8 +26,6 @@ import com.owncloud.android.R;
 import com.owncloud.android.lib.common.operations.RemoteOperation;
 import com.owncloud.android.lib.common.operations.RemoteOperationResult;
 import com.owncloud.android.lib.common.operations.RemoteOperationResult.ResultCode;
-import com.owncloud.android.lib.resources.files.CreateLocalFileException;
-import com.owncloud.android.lib.resources.files.FileUtils;
 import com.owncloud.android.operations.CopyFileOperation;
 import com.owncloud.android.operations.CreateFolderOperation;
 import com.owncloud.android.operations.CreateShareViaLinkOperation;