Remove unused gerrit ACLs
Remove unused gerrit ACLs

gerrit/acls/openstack/swiftsync.config is unused. We have no
swiftsync repo in openstack, the one in stackforge is retired.

Change-Id: I195793039a5cbe3e46b2531795daaf282f772155

dongwenjuan/project-config,Tesora/tesora-project-config,dongwenjuan/project-config,Tesora/tesora-project-config,noorul/os-project-config,openstack-infra/project-config,openstack-infra/project-config,noorul/os-project-config