recovery: remove remap script

* Unused
* Obsolete
* Unused

Change-Id: Id053edf3dca414d5dc8b553d540c8fe20235e10c
move bootrec-device so that it is automatically copied

Change-Id: If338f63b43194e2ca390b47d16cecd08a520752d
Update memory configuration inheritance

* Use 'inherit-product' instead of 'inherit-product-if-exists'
  for the Dalvik heap config, and HWUI memory limits,
  so that the build fails if those files do not exist
* Device doesn't boot with the default values, it
  runs Out-of-memory because of improper configuration

Change-Id: I90f02a118f3791e482bbe49507256f5e2e7cc47a