Drop remaining boost/shared_pointer debug functionality
...most of which had already been removed with
4e354737908b89713297ebf5216eb44f3d9ae990 "remove boost/shared_ptr foo".
4c657f5a1a340ec9afe795d911625991f6a9cf7a "Properly #if these debug hooks" had
noted that slideshow/source/engine/smilfunctionparser.cxx "still indirectly
includes boost/scoped_ptr.hpp via. boost/spirit", but lets assume that nobody
actually relied on this functionality (and however it would actually work in
practice).
Change-Id: Ib8ccfcd8019d7b03b138aee1ac026a2f7bd5d402
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/165082
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <stephan.bergmann@allotropia.de>