Remove functional test environments from tox.ini

This removes tox evs which are dependent on a tests repo framework,
which was deprecated.

Change-Id: I814930b3e23ec8d0f69aa539902f754ef81ffac0
Co-authored-by: Dmitriy Rabotyagov <dmitriy.rabotyagov@cleura.com>
Signed-off-by: Ivan Anfimov <lazekteam@gmail.com>

tox.ini

@@ -60,35 +60,3 @@ commands =
 [testenv:venv]
 commands =
     {posargs}
-
-[testenv:pep8]
-commands =
-    bash -c "{toxinidir}/tests/common/test-pep8.sh"
-
-[flake8]
-ignore = F403
-enable-extensions = H106,H203
-
-[testenv:bashate]
-commands =
-    bash -c "{toxinidir}/tests/common/test-bashate.sh"
-
-[testenv:ansible-syntax]
-commands =
-    bash -c "{toxinidir}/tests/common/test-ansible-syntax.sh"
-
-[testenv:ansible-lint]
-commands =
-    bash -c "{toxinidir}/tests/common/test-ansible-lint.sh"
-
-[testenv:functional]
-commands =
-    bash -c "{toxinidir}/tests/common/test-ansible-functional.sh"
-
-[testenv:linters]
-commands =
-    bash -c "{toxinidir}/tests/common/test-ansible-env-prep.sh"
-    {[testenv:pep8]commands}
-    {[testenv:bashate]commands}
-    {[testenv:ansible-lint]commands}
-    {[testenv:ansible-syntax]commands}