[Bug c++/80577] Avoid using adj in member function pointers

[drepper.fsp+rhbz at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80577

--- Comment #2 from drepper.fsp+rhbz at gmail dot com <drepper.fsp+rhbz at 
gmail dot com> ---
final isn't necessary in this case.  An object is used and the type is known.