remove unused import

Signed-off-by: Andy Scherzinger <info@andy-scherzinger.de>

src/main/java/com/owncloud/android/ui/activity/SyncedFoldersActivity.java

@@ -76,7 +76,6 @@ import com.owncloud.android.utils.ThemeUtils;
 
 import java.io.File;
 import java.util.ArrayList;
-import java.util.Arrays;
 import java.util.Collections;
 import java.util.HashMap;
 import java.util.List;