Revert "Generic multi-carrier overlays based on hammerhead"

This causes problems all over the place for Verizon, its better to just go back to the way it was

This reverts commit de16b9430d54c8d50f982b29327faa879c22ea9f.

Change-Id: If94403021e16d3d2000c89528f384bfa521efa37

Please do at same time as:
http://gerrit.aokp.co/#/c/16622/

..and clean flash to avoid problems losing LTE.