ignore SAL_LOG type stuff in the destructor

Change-Id: If014382ca0c96edd3f2b325a28451d83b3d1f278
Reviewed-on: https://gerrit.libreoffice.org/37539Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>