Revert "fmradio: enable STE radio"

This reverts commit 11793000ea4706c2424ca12b5284d3ff489a5062.

Change-Id: Ib8513d35ad7f272ea584f1ad48724739a405f1ca
audio-caf: Remove STE fmradio

Change-Id: Id57a0ad5f3175d4e146b77ee51abca36f2add3e5