GMM: Delete a role from a test, and all associated test steps are deleted w/o warning!

In GMM, I copied a test definition so that it could be re-used & modified for another profile.

I added a new Role to the test.

I did not yet modify any existing test steps to use the newly-added Role.

Later, I came back to the test to continue work. I deleted the old Role (that was still being used in existing test steps), and ALL TEST STEPS WERE DELETED without warning.

The behavior before this version to display a warning that the Role could not be deleted because it was being used in steps, and you could not delete the Role until that was resolved.

The old behavior is much, much better.