I ran into a problem where this global object would be destroyed and
then resurrected during shutdown.
Rather than make the existing code more complex, extend the existing
vcl::DeleteOnDeinit code and re-use that here.
Change-Id: Ib63739f57f489b1131111e9bab1db5fba7fd17bd
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/169697
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
b17171b949