Revert "some changes from 4.4 bring up commit from AOSPA"

This reverts commit a791c53e124768e7d099ede404cad83f33614e0c.
Revert "Vendor named target and save manifest, Add target compiler version to build dump, ty to eugenesan"

This reverts commit fec37eaecaa49817122f351ad89dfe36903ccbec.
Revert "Improve ccache support by allowing host's ccache with compression support- Thanks to eugenesan"

This reverts commit 297a2bbb35923af4f1e1286d5ed7b1170f672737.
Revert "Include bash completion scripts from custom vendor - Thanks to chirayudesai"

This reverts commit be116d076a116690cea94f9999cfef9cfe00a40e.
Revert "Bring in custom vendor changes from CM/PA - Thanks to Jesús David"

This reverts commit 10e19490f974a7410971eb5a0dcb28997797448c.