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: PRODX-5350

Change-Id: Id3e9b57ea4159149e981bbaa703cdb472f05ca6f
(cherry picked from commit d389cd2921017279a57213e4b17d1ae09bfded94)
(cherry picked from commit c181a4105f2b85571629668e8b0a62812aa55ac9)
(cherry picked from commit b4ad18bbdba229018265f323cb906beeeb3cf65a)
(cherry picked from commit dfdaa924e0fafb3f5067778c1b2061c75d42b6ab)
1 file changed