Fix test_delete_should_not_.. to assert something

This changes test_delete_should_not_delete_if_provider_location_not_provided
to assert the case it is testing.

Closes-bug: 1284263

Change-Id: I25160140e15721e0de4251ba2373a560d4b0ad46
Merge "Fix test_delete_should_not_.. to assert something"