gtk/src/enums.hg: Remove documentation of enums, gmmproc adds it
gtk/src/enums.hg: Remove documentation of enums, gmmproc adds it

GNOME/gtkmm,GNOME/gtkmm,johne53/MB3Gtkmm,johne53/MB3Gtkmm,johne53/MB3Gtkmm,GNOME/gtkmm,GNOME/gtkmm