py34 not py33 is tested and supported

The setup.cfg refers to Programming Language of Python 3.3 whereas
jenkins is setup only to test Python 3.4. This patch updates setup.cfg
and removes py33 from tox.ini.

TrivialFix

Change-Id: I6e4b01bf4997a99fd0ac0c2602d87321c076d2ad

setup.cfg

@@ -16,7 +16,7 @@ classifier =
     Programming Language :: Python :: 2
     Programming Language :: Python :: 2.7
     Programming Language :: Python :: 3
-    Programming Language :: Python :: 3.3
+    Programming Language :: Python :: 3.4
 
 [files]
 packages =

tox.ini

@@ -1,7 +1,7 @@
 [tox]
 minversion = 1.6
 skipsdist = True
-envlist = py26,py27,py33,py34,pep8
+envlist = py26,py27,py34,pep8
 
 [testenv]
 usedevelop = True
@@ -14,10 +14,6 @@ deps = -r{toxinidir}/requirements.txt
        -r{toxinidir}/test-requirements.txt
 commands = python setup.py testr --testr-args='{posargs}'
 
-[testenv:py33]
-deps = -r{toxinidir}/requirements.txt
-       -r{toxinidir}/test-requirements-py3.txt
-
 [testenv:py34]
 deps = -r{toxinidir}/requirements.txt
        -r{toxinidir}/test-requirements-py3.txt