fireball: 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.

Change-Id: Id4129ed27823607a3abb86cc76e73ad4ca99ba85
(cherry picked from commit 6cec3d4e51ed48d6ec7280e3cd183546e355afad)