Gadgets system still needs "Access Contents Information" on web site module to properly work for Anonymous User so revert part of r39007 (still Anonymous User will not be able to view web_site_module)

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@39231 20353a03-c40f-0410-a6d1-a30d3c3de9de