* drop most of libxslt-internal-symbols.patch, fixed upstream

Change-Id: I59cf57a4d3139ad5fa0e5ce1a6cdaaa568ae3a40
Reviewed-on: https://gerrit.libreoffice.org/41947Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Michael Stahl <mstahl@redhat.com>