user_delete_access() redeclared problem conflicting with user delete module

A newly introduced function on the user.module named user_delete_access() is conflicting due to redeclaring with another equaly name on the user delete module.

Fix proposition: either contact 'user delete' module's maintainer and ask him to change the function name and to provide us with an update, or change the function name to user_delete_access_perm() or something.