compositor: remove useless weston_compositor_repick call
compositor: remove useless weston_compositor_repick call

compositor->focus was just unset, and weston_compositor_repick() has no
effect.

Signed-off-by: Tiago Vignatti <f080760b2054d506aacc8dee97f8804c19fbc3aa@intel.com>

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