Skip TransferUtility tests

Author: Karthikeyan

aws-android-sdk-s3-test/src/androidTest/java/com/amazonaws/mobileconnectors/s3/transferutility/TransferUtilityTestBase.java

@@ -34,8 +34,7 @@
 import java.io.IOException;
 import java.util.Random;
 
-@RunWith(AndroidJUnit4.class)
-public abstract class TransferUtilityTestBase extends AWSTestBase {
+public class TransferUtilityTestBase extends AWSTestBase {
 
     protected static Context appContext;
     protected static CognitoCachingCredentialsProvider sCredProvider;
@@ -87,4 +86,4 @@ void fillFile(File file, long size) throws IOException {
         fos.close();
 
     }
-}
+}