Remove the unused mapper of image member create
Remove the unused mapper of image member create

For image members v1, we don't support "create" method,
but we're mapping it in router.py. So this fix will
remove the unused mapper.

Fixes bug 1223658

Change-Id: I20401656ea2930a026cf8b67825d9ec9f6623487

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