m7-common: remove HTC IR implementation

Revert "m7-common: declare CIRModule.apk as pre-signed"

This reverts commit dc836351d2fa7de901264969dac54019cd8b2f48.

Revert "m7: HTC IR Blaster support for AOSP."

This reverts commit 2b86687a460030199fa42d49207957ce285c1a53.