ville: remove non-CM/CWM configurations

TWRP is a separate project. Really, we need to abide by the "eat your own
dogfood" philosophy anyways and use CWM to motivate improving it.

Note: although TARGET_RECOVERY_PIXEL_FORMAT is not TWRP specific, it is
already defined in s4-common.

Change-Id: Ifef41e99a0b4498648ff2ea005d16c07d32c1de9