bug#2324: Hide some mailing lists on the Savannah Emacs page

[Glenn Morris]

Package: emacs,emacs-www

Can someone with the necessary privs hide the "emacs-bug-tracker" and
"emacs-commit" lists from the Savannah web page that lists Emacs
mailing lists:

http://savannah.gnu.org/mail/?group=emacs

(eg emacs-pretest-bug is hidden, I don't know how.)

emacs-commit is no longer used. The emacs-bug-tracker list is not used
at present (I doubt it ever will be), and having it there just causes
confusion. It can be un-hidden if it is ever used.

Thanks.