Remove extra expected error code (413) from image metadata
Remove extra expected error code (413) from image metadata

Out of quota error has been changed from 413 to 403 in
I7c179748769b8a0e2cc2e476ebefe33449f6f304, but those
remained in expected error code in image metadata APIs.

Trivial-Fix

Change-Id: Id49c34750931508fb96251a4e1b3d1d8612f7f0d

mahak/nova,rajalokan/nova,klmitch/nova,Juniper/nova,gooddata/openstack-nova,klmitch/nova,vmturbo/nova,gooddata/openstack-nova,rajalokan/nova,mikalstill/nova,cloudbase/nova,vmturbo/nova,cloudbase/nova,jianghuaw/nova,cloudbase/nova,hanlind/nova,Juniper/nova,sebrandon1/nova,klmitch/nova,hanlind/nova,mahak/nova,alaski/nova,rahulunair/nova,phenoxim/nova,openstack/nova,vmturbo/nova,openstack/nova,vmturbo/nova,openstack/nova,hanlind/nova,gooddata/openstack-nova,sebrandon1/nova,jianghuaw/nova,klmitch/nova,mikalstill/nova,rajalokan/nova,jianghuaw/nova,mahak/nova,mikalstill/nova,alaski/nova,phenoxim/nova,Juniper/nova,rajalokan/nova,jianghuaw/nova,rahulunair/nova,Juniper/nova,sebrandon1/nova,gooddata/openstack-nova,rahulunair/nova