manifest: Don't build mutter-wayland yet, per gcampax request
manifest: Don't build mutter-wayland yet, per gcampax request

vrutkovs/vrutkovs.github.io,GNOME/gnome-ostree,GNOME/gnome-ostree,chergert/gnome-continuous,chergert/gnome-continuous,vrutkovs/vrutkovs.github.io,chergert/gnome-continuous,vrutkovs/vrutkovs.github.io,GNOME/gnome-ostree