gameport: remove duplicate include

Signed-off-by: Andre Haupt <andre@bitwigglers.org>
Signed-off-by: Adrian Bunk <bunk@kernel.org>

drivers/input/gameport/gameport.c

@@ -17,7 +17,6 @@
 #include <linux/init.h>
 #include <linux/gameport.h>
 #include <linux/wait.h>
-#include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/delay.h>
 #include <linux/kthread.h>