Merge pull request #2799 from blueyed/cleanup-tox.ini

minor: cleanup tox.ini

tox.ini

@@ -28,7 +28,6 @@ deps =
     requests
 
 [testenv:py26]
-commands = pytest --lsof -ra {posargs:testing}
 # pinning mock to last supported version for python 2.6
 deps =
     hypothesis<3.0
@@ -117,8 +116,6 @@ commands=
   pytest -ra {posargs:testing/python/approx.py}
 
 [testenv:py27-pluggymaster]
-passenv={[testenv]passenv}
-commands={[testenv]commands}
 setenv=
     _PYTEST_SETUP_SKIP_PLUGGY_DEP=1
 deps =
@@ -126,8 +123,6 @@ deps =
     git+https://github.com/pytest-dev/pluggy.git@master
 
 [testenv:py35-pluggymaster]
-passenv={[testenv:py27-pluggymaster]passenv}
-commands={[testenv:py27-pluggymaster]commands}
 setenv=
     _PYTEST_SETUP_SKIP_PLUGGY_DEP=1
 deps =