Remove launchpad project mappings for -api repos

Depends on: Change-Id: I77b8df96bd207735150c418c76c0365732f98e44

Change-Id: Ib854640979a5fee69a32335b2894c2d538d8a62f
Remove rest openstack/* repos mappings

In addition it removes unneded quantum repos mapping, because there are
no more repos named 'openstack/quantum' and 'openstack/python-quantumclient'.

Depends on: Change-Id: Ifaa8e7eeccaaa1187001ccff6bca5e0150ea9b79

Change-Id: I959d8d7cdc737e485bda675150f204df4019dffd
Merge "Remove launchpad project mappings for -api repos"
Merge "Remove rest openstack/* repos mappings"