Remove httpretty out of test-requirements
Remove httpretty out of test-requirements

We don't need that which is not py3.4 compatible anymore.

Change-Id: Ia2da5885f87d600fed4a7d594b3f6f7ce330863a

ramineni/my_congress,ekcs/congress,openstack/congress,openstack/congress,ekcs/congress,ekcs/congress,ekcs/congress,ramineni/my_congress,ramineni/my_congress,ramineni/my_congress