xwm: Don't select for STRUCTURE_NOTIFY or RESIZE_REDIRECT
xwm: Don't select for STRUCTURE_NOTIFY or RESIZE_REDIRECT

We get all that information through SUBSTRUCTURE_NOTIFY on the parent
windows.

eyolfson/weston,sir-murray/weston,Tarnyko/weston-xdg_surface_present,Gnurou/weston,jonnylamb/weston,krezovic/weston,xorgy/weston,giucam/weston,mchalupa/weston,Tarnyko/weston-xdg_surface_present,xorgy/weston,Gnurou/weston,krezovic/weston,kwm81/weston,Fantu/compositor-spice,jonnylamb/weston,Fantu/compositor-spice,udoprog/weston,kwm81/weston,eyolfson/weston,Fantu/compositor-spice,sir-murray/weston,giucam/weston,mchalupa/weston,udoprog/weston