Revert "Omni: Add LowerFPS Bootanimantion"

This reverts commit 3df3e313674617a176061b64df8560807d3bd5ea.

Change-Id: Ia9bc9936bd93b7a55504a3e39e156a4b3a7a84d5
Vendor: Add common-tablet.mk and common-tablet overlay

Change-Id: Iba072a50ce2167694c43a53175287c9e153477ec
vendor/omni: Add support for low fps boot animation. 

Some devices can not support over 100+ fps, leaving too 
much black screen time during boot. 

To use, add flag 'USE_LOWFPS_BOOTANI := true' to your 
omni_<device>.mk file, ahead of the call to 
vendor/omni/config/common.mk (or common_tablet.mk). 

This was tested on clean builds for tf101 and with flag 
(and this patch) the low fps boot animation was pulled in 
and without the flag the normal boot animation was pulled in. 
Should work for all devices.

Change-Id: I461381093ca5783a074f35bc5b8aa852c5607d2f
Merge branch 'android-4.4' of https://github.com/omnirom/android_vendor_omni into android-4.4