Remove unneeded modules

Change-Id: I83c25b6c7aabae0e41d7dead045fb22fe77c14ba
Build libemoji

Change-Id: I2ba630e666a340784d17cb92aba8b125ebcec8ad
Remove and include hwc from hardware/omap3

Change-Id: Ibf89074219f50bbe7873e95ae8291518885a4fa2
media codecs update

Change-Id: Iac25f533dcb8436f2ffac09ed6a42e7a0ebb305f