ARM: OMAP2+: timer: Remove obsolete inclusion of <asm/smp_twd.h>

As of commit d1dabab2 ("ARM: OMAP2+: Clean up
omap4_local_timer_init"), this header file is no longer used.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap2/timer.c

@@ -44,7 +44,6 @@
 #include <linux/sched_clock.h>
 
 #include <asm/mach/time.h>
-#include <asm/smp_twd.h>
 
 #include "omap_hwmod.h"
 #include "omap_device.h"