core: main: remove all the spam about including make files

Change-Id: Ifd2ef0e239d16b169c572472416c2c31df62a367
Remove some stuff 4.4 style
Remove some missed stuff
Art needs this bit
ota_from_target_files: Don't update recovery image
sign_target_files_apks: rewrite build.prop correctly in eng builds

In eng builds, ro.display.id has many space separated items and was
resulting in an error when trying to rewrite it as 'value' gets
turned into a list and never converted back to a string.

Change-Id: I6c8633ed2eb52c56a4097992a32d53d80df4f844
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
Drop LatinIME
drop the check-product-copy-files
Don't Restrict Vendors & DataRoaming=False.
Add support for overriding build.prop settings.

Conflicts:
	core/Makefile
Don't build sample apns
Set default ringtone, notification & alarm sound