startup.c: free timer
startup.c: free timer

Small memleak. The timer is not called used again since ev_timer_init is
called with repeat = 0.

stapelberg/i3,Airblader/i3-original,Airblader/i3,Airblader/i3-original,stapelberg/i3,Airblader/i3-original,i3/i3,stapelberg/i3,i3/i3,Airblader/i3,i3/i3,Airblader/i3-original,Airblader/i3-original,Airblader/i3,i3/i3,stapelberg/i3,Airblader/i3