[BUG] mdk's drakxtools vs gtk2-perl-xs: we lack Timeout->remove that should be aliased onto Glib::Source->remove

[Thierry Vignaud <tvignaud mandrakesoft com>]

i'm now able to run harddrake2, lot of small tools as well as the
mandrake control center

pb: the api is not othognal: we have Glib::Timeout->add but not
Glib::Timeout->remove.
instead we have Glib::Source->remove ...
se should alias it to Glib::Timeout->remove