Tests still have python2.7 configs remaining and some tests
are named -debian, implying the old ones are for centos and
can be removed.
This commit removes the python2.7 and centos configs from tox
and zuul.
Test Plan:
1. PASS - Ran all tests in tox and verified if every test
finished with the desired output.
2. PASS - Ran tests in zuul environment and checked if
it was successfull.
Story: 2010531
Task: 48385
Change-Id: I2de9ef82a86e2ce35a3f2a5824f5dac634d2bd1e
Signed-off-by: Gustavo Pereira <gustavo.lyrapereira@windriver.com>
fe00700f58