compositor: refactor to weston_output_schedule_repaint_reset()
compositor: refactor to weston_output_schedule_repaint_reset()

No functional changes.

Signed-off-by: Pekka Paalanen <0f6ae7001e34c37b02fb2c1c2573ddf8f442136a@collabora.co.uk>
Reviewed-by: Daniel Stone <62e7e355d5d8400fa8384448796af0bf6be4ffae@collabora.com>

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