Remove obsolete active/passive scan handling - drivers always
do active scan.
Also, remove AP_SCAN hack for preventing connections and use
the TYPE=ONLY scan.
Bug: 8158647
Change-Id: I8f70e19219ad789b7501a40529bcd6b6524739e8
Fix bug dealing with airplane mode settings of whether wifi
is sensitive to airplane mode change and whether wifi is
allowed to override airplane mode that likely has been
broken ever since.
Bug: 8141918
Change-Id: Ia3116c9dfce2952cbe3911e9d81dbbae0430abef