There's even 2 of these; move them to struct ImplSVData
which is deleted on shutdown.

Change-Id: I8040cd6f9f31c0a1ab48987a490395f316d52220
Reviewed-on: https://gerrit.libreoffice.org/42630Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Michael Stahl <mstahl@redhat.com>