Prevent "Validate" from matching against deleted authority records

Prevent "Validate" from matching against deleted authority records

2.0 introduces the ability to delete authority records. The routines in
OpenILS:Application:Storage:Publisher:authority check for matching values
of authority.full_rec without concern about whether the corresponding
entry in authority.record_entry has been deleted or not.

This change removes entries from authority.full_rec when an
authority.record_entry row is deleted, with the (possibly incorrect)
assumption that there won't be many cases where users will want to
search for deleted authority records and undelete them. If that
assumption turns out to be incorrect, then further changes can follow;
this change at least makes the current behaviour for user-visible
actions work as expected.

git-svn-id: svn://svn.open-ils.org/ILS/branches/rel_2_0@18410 dcc99617-32d9-48b4-a31d-7c20da2025e4