Remove support for py34

The gating on python 3.4 is restricted to <= Mitaka. This is due to the
change from Ubuntu Trusty to Xenial, where only python3.5 is available.
there is no need to continue to keep these settings.

Change-Id: I71db19d9233254ecec89b774585271d47caba75f
diff --git a/setup.cfg b/setup.cfg
index f76d172..6fd4b8a 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -17,7 +17,6 @@
     Programming Language :: Python :: 2.7
     Programming Language :: Python :: 3
     Programming Language :: Python :: 3.3
-    Programming Language :: Python :: 3.4
     Programming Language :: Python :: 3.5
 
 [files]