FM Radio: Don't register AUDIO_BECOMING_NOISY intent

FM registers two intent listener for headset removal. Because of the
intents recieved from both listeners, race condition happens. Even antenna
is connected to device, FM app shows antenna as disconnected.
Hence register one listener for headset removal.

Change-Id: Ic6811652a2356a80d3ba3517bf7ea11f73328ed3
diff --git a/fmapp2/src/com/caf/fmradio/FMRadioService.java b/fmapp2/src/com/caf/fmradio/FMRadioService.java
index a178548..54f8646 100644
--- a/fmapp2/src/com/caf/fmradio/FMRadioService.java
+++ b/fmapp2/src/com/caf/fmradio/FMRadioService.java
@@ -254,7 +254,6 @@
       mSession.setFlags(MediaSession.FLAG_EXCLUSIVE_GLOBAL_PRIORITY |
                              MediaSession.FLAG_HANDLES_MEDIA_BUTTONS);
       mSession.setActive(true);
-      registerAudioBecomeNoisy();
       if ( false == SystemProperties.getBoolean("ro.fm.mulinst.recording.support",true)) {
            mSingleRecordingInstanceSupported = true;
       }