Revert "media: radio: Fix building and loading the iris transport"

* This is no longer needed and causes FM radio not to work
  until the app is killed and restarted the first time after boot

This reverts commit 629573d17924e29f98a5c9f2816004b60304e7da.

Change-Id: I28abb3893bde5f46e3dbff6507cb17489a9812f9