Revert "Add "test_suites" attribute to SettingsRoboTests."

This reverts commit 87318575508ef904de87aa59a9e9abfcc811f97d.

Reason for revert: Robolectric tests aren't supported in TEST_MAPPING, so no need to follow the guide.

Change-Id: Id8b1a82a26cf390f6f1088a7fcf54287e73af6b5
1 file changed