Remove exec bit from the tests
These tests must be invoked via pytest, so let's remove the exec bit. It wasn't set on all tests anyway.
Due to an influx of spam, we have had to impose restrictions on new accounts. Please see this wiki page for instructions on how to get full permissions. Sorry for the inconvenience.
These tests must be invoked via pytest, so let's remove the exec bit. It wasn't set on all tests anyway.