Updated openstack/openstack
Project: openstack/python-heatclient  b46bb13e7ceb7b4a364d7b7f473bc15887cbbebd
null
Remove unused common.base module

Base module is already replaced with a module from oslo common code,
but was not removed. This patch must fix this.

Change-Id: I8f5c4da8884db4024d47ca8d1a80dbb648922a31