Revert "Revert "Immediately execute instead of queueing request ..."

Revert submission 19019716

Reason for revert: b/237352700
Reverted Changes:
I8e37ac142:Revert "Queue discovery and device inquiry while b...
Ic8642a39f:Revert "Make SDP and inquiry request dequeue and e...
I06eb6d806:Revert "Immediately execute instead of queueing re...

Bug: 237352700
Test: Manual
Change-Id: I56db49540b139ae0d8d1e5819d348d28e432a5e3
(cherry picked from commit bba6b41f)
Merged-In: I56db49540b139ae0d8d1e5819d348d28e432a5e3