tox.ini: cleanup and fix failing travis build

Author: manu-chroma

tox.ini

@@ -1,12 +1,11 @@
 [tox]
-#envlist = py27-lint, py27-unit, py27-pipconflictchecker, py33-lint, py33-unit, py34-lint, py34-unit, py35-py2_mypy, py35-mypy, py35-lint, py35-unit, py36-lint, py36-unit  # only when py3 compat is done
 envlist = py27-lint, py27-unit, py27-pipconflictchecker, py36-lint, py35-lint, py34-lint, py33-lint
 skipsdist = True
 
 [travis]
 python =
  2.7: py27
- 3.5: py35-py2_mypy
+ 3.5: py35-mypy2
 
 [testenv]
 deps = -rrequirements.txt
@@ -25,27 +24,6 @@ deps =
   mypy==0.511
   -rrequirements.txt
 
-
-[testenv:py36-lint]
-commands = flake8 cwltool setup.py
-whitelist_externals = flake8
-deps = flake8
-
-[testenv:py35-lint]
-commands = flake8 cwltool setup.py
-whitelist_externals = flake8
-deps = flake8
-
-[testenv:py34-lint]
-commands = flake8 cwltool setup.py
-whitelist_externals = flake8
-deps = flake8
-
-[testenv:py33-lint]
-commands = flake8 cwltool setup.py
-whitelist_externals = flake8
-deps = flake8
-
 [testenv:py27-lint]
 commands = flake8 cwltool setup.py
 whitelist_externals = flake8
@@ -56,14 +34,5 @@ commands = pipconflictchecker
 whitelist_externals = pipconflictchecker
 deps = pip-conflict-checker
 
-[testenv:py35-unit]
-commands = python setup.py test
-
-[testenv:py34-unit]
-commands = python setup.py test
-
-[testenv:py33-unit]
-commands = python setup.py test
-
 [testenv:py27-unit]
 commands = python setup.py test