Cleanup: remove unused files

1. AudioBTIDnew.csv - was never named right in the first place and
   is only used by msm8660 qcom audio-caf
2. Keylayouts and input device configurations - removed those already
   provided by AOSP in frameworks/base/data/keyboards

Change-Id: I6e6c774d8a4c5a110544b685692fcc946cd4c460
OTG: remove OTG entry from storage options until it works

Change-Id: I4fa31d8c1aaadc01d27b4e3640cfebfc2db91743
Keys: label capacitive buttons as virtual keys

Change-Id: Ifd51f5f8d7b74a80d9359a87fc3684999b2853b1
Packages: remove redundant definitions

make_ext4fs and setup_fs are already specified in msm8960-common

Change-Id: I2b5b3e879b3ae3d0d4b9747eaf9136ad93cfe622