blue: remove twrp flags

* These aren't maintained / kept in sync with TWRP.

Change-Id: Ie6d70be03f51cff0495ada7c090f1b2f9f958dfb
move bootrec-device so that it is automatically copied

* And cleanup the makefile a little bit

Change-Id: I12bc2c8ce0e4c3b517abdc666960bb34113a422b
remove NFC HCE permission

* This isn't currently supported in AOSP/CM12

Change-Id: I4021fddd08eaedc6541cee1a0591116b6bc166d2