Disable pyXY tests on internal CI

this repo has no actual unit tests and when executing test runner
attempts to run actual tempest tests.

The CI job checks the list of default envs before runnning given
tox env. While this is actually wrong (those pyXY envs are
actually auto-generated by tox), removing them from default env
list unblocks our internal CI.

Related-prod: PROD-18630

Change-Id: I3f5cdd3112e6864ddce6aa38a1c3393e2e4788cd
(cherry picked from commit 2f6dd5fdb0296a10a7c15aa62683057e702fed58)
1 file changed