Remove a horrid and wrong unquoting regex used by GetReferencedQueues

GetReferencedQueues used to return the Value keys of the tree that
RT::Interface::Web::QueryBuildeR::Tree returned -- which are simply a
re-escaping of what the TicketSQL parser found.  Skip having to
un-escape the re-escaped values by storing them away explicitly.

[RT commit that
fixes issues #30034
for RTIR]
Merge branch '3.2/missing-cfs-on-search'