qcacld-3.0: Remove the logic to move ACS to pending

Currently in SAP+SAP scenario the second ACS request
is moved to pending and is completed when the first
ACS is completed, but since FW serializes the scan
so the reuest for second ACS if not kept in pending
and sent down to FW would automatically be serialized
which would reduce latency in second SAP bringup.

Remove the pending work logic and implementation
to improve latency in second ACS scan.

Change-Id: I439398b406e9371a8e443f5409bd3f25b3062501
CRs-Fixed: 2570259
4 files changed