Remove unused module imports from TAP tests
The Config and Cwd modules were no longer used, but remained imported,
in a number of tests. Remove to keep the imports to the actually used
modules.
Reviewed-by: Andrew Dunstan <andrew@dunslane.net>
Discussion: https://postgr.es/m/
A5A074CD-3198-492B-BE5E-
7961EFC3733F@yesql.se