audioflinger: Remove fatal error handling for non offload tracks

- Audio pop is heared on BT during SSR

- On sound card OFFLINE status,pcm track is
  recreated resulting audio pop sound

- Handle OFFLINE status only for offload tracks

Change-Id: I483d4595b61fab4d0be460b9e481ab82f7ab46b5

Conflicts:
	services/audioflinger/Threads.cpp