Remove unused dictionary from test_registry_api.py
Remove unused dictionary from test_registry_api.py

Deleted a dictionary that wasn't being used in test_get_index_filter_name.

Change-Id: If353c595487f34457463f6aa83e560d68cfc4e90
Fixes: bug #1187442

tanglei528/glance,ntt-sic/glance,akash1808/glance,JioCloud/glance,redhat-openstack/glance,takeshineshiro/glance,openstack/glance,saeki-masaki/glance,sigmavirus24/glance,openstack/glance,rajalokan/glance,SUSE-Cloud/glance,paramite/glance,tanglei528/glance,cloudbau/glance,cloudbau/glance,kfwang/Glance-OVA-OVF,rickerc/glance_audit,klmitch/glance,ntt-sic/glance,jumpstarter-io/glance,stevelle/glance,ozamiatin/glance,sigmavirus24/glance,klmitch/glance,openstack/glance,rickerc/glance_audit,darren-wang/gl,vuntz/glance,citrix-openstack-build/glance,redhat-openstack/glance,vuntz/glance,ozamiatin/glance,darren-wang/gl,stevelle/glance,dims/glance,JioCloud/glance,dims/glance,paramite/glance,scripnichenko/glance,SUSE-Cloud/glance,rajalokan/glance,wkoathp/glance,akash1808/glance,scripnichenko/glance,citrix-openstack-build/glance,kfwang/Glance-OVA-OVF,jumpstarter-io/glance,wkoathp/glance,saeki-masaki/glance,takeshineshiro/glance