Make cache key generator ignore cache argument
Make cache key generator ignore cache argument

This argument pollutes the cache keys with cache:True, which is not
actually relevant to the data requested, and makes invalidation
complicated.

Change-Id: Idd5e20de0fff6d540fadc79a5f30c52ff0e29136

openstack-infra/shade,dtroyer/python-openstacksdk,stackforge/python-openstacksdk,stackforge/python-openstacksdk,openstack/python-openstacksdk,jsmartin/shade,openstack/python-openstacksdk,jsmartin/shade,openstack-infra/shade,dtroyer/python-openstacksdk