wifi: remove local nl80211 header

* Sync with omapzoom d-jb-mr2.1-release

Change-Id: I89cb2c3bdf667f38ff4c94c164cdfb3d750478e2
audio_policy: Prevent dumping string NULL termination

Change-Id: Ia2e08de45a5e4880c9547a5cf8f93e72d4dd6baa
Revert "libhardware_legacy: Add support for oneshot WiFi setup"

This reverts commit 2736b9e876fbb552a297c6497591ac0eec2c898b.

Change-Id: I95c35b3c47b127be996f4503747f3a5f90c787ae