Drop py35 from tox. Ref #202.

Author: jaraco

tox.ini

@@ -1,6 +1,6 @@
 [tox]
 # Coverage is missing on later version of Python
-envlist = {py27,py35,py36,py37,py38,py39}{,-cov,-diffcov},qa,docs
+envlist = {py27,py36,py37,py38,py39}{,-cov,-diffcov},qa,docs
 skip_missing_interpreters = True
 toxworkdir={env:TOX_WORK_DIR:.tox}
 
@@ -30,7 +30,7 @@ setenv =
     cov: COVERAGE_OPTIONS="-p"
     cov: COVERAGE_FILE={toxinidir}/.coverage
     py27: OMIT=3
-    py35,py36,py37,py38,py39: OMIT=2
+    py36,py37,py38,py39: OMIT=2
 
 
 [testenv:qa]