The openstack/tap-as-a-service was evicted from the openstack/ Git
namespace along with all other unofficial projects during the great
schism. More recently, the project was adopted as part of OpenStack
Neutron and renamed back into the openstack/ but we didn't notice
there was a lingering redirect for their existing tarballs. Remove
that redirect now that it shadows the official location.
Change-Id: If4be90ddc246183a1843fc9bb480bdc6d00c18e3
f8fd0b72dd