Revert "Add an option in the InCall UI to perform call recording"

This reverts commit 7a156e0fc287be088e9a518f85d191b18c50e7bd.

Conflicts:
	res/layout/call_button_fragment.xml
	src/com/android/incallui/CallButtonFragment.java
	src/com/android/incallui/CallRecordingButton.java