No need to test for arch validation
No need to test for arch validation

We no longer need to validate the architecture as the download
is no longer arch-specific, so fix the tests which check that
arch validation is working correctly.

crosswalk-project/DEPRECATED-crosswalk-apk-generator,crosswalk-project/DEPRECATED-crosswalk-apk-generator,crosswalk-project/DEPRECATED-crosswalk-apk-generator,crosswalk-project/DEPRECATED-crosswalk-apk-generator