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.

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

..and clean flash to avoid problems losing LTE.

Change-Id: If94403021e16d3d2000c89528f384bfa521efa37