Remove incorrect-ish test
Remove incorrect-ish test

I would argue the file extension test is not appropriate for the roast. More importantly it uses relative file paths for its `use lib` ( see: https://github.com/perl6/roast#test-utilities and https://github.com/perl6/roast/commit/dfe7430ded9e9dd3154ee103681cf9c1555ed8c4 )
perl6/roast,dogbert17/roast,dogbert17/roast