[S390] Remove unused includes in process.c

Remove unsused includes from arch/s390/kernel/process.c.
Signed-off-by: NJan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>

arch/s390/kernel/process.c

@@ -9,41 +9,26 @@
 
 #include <linux/compiler.h>
 #include <linux/cpu.h>
-#include <linux/errno.h>
 #include <linux/sched.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
-#include <linux/fs.h>
 #include <linux/smp.h>
-#include <linux/stddef.h>
 #include <linux/slab.h>
-#include <linux/unistd.h>
-#include <linux/ptrace.h>
-#include <linux/vmalloc.h>
-#include <linux/user.h>
 #include <linux/interrupt.h>
-#include <linux/delay.h>
-#include <linux/reboot.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/notifier.h>
 #include <linux/tick.h>
-#include <linux/elfcore.h>
-#include <linux/kernel_stat.h>
 #include <linux/personality.h>
 #include <linux/syscalls.h>
 #include <linux/compat.h>
 #include <linux/kprobes.h>
 #include <linux/random.h>
-#include <asm/compat.h>
-#include <asm/uaccess.h>
-#include <asm/pgtable.h>
+#include <linux/module.h>
 #include <asm/system.h>
 #include <asm/io.h>
 #include <asm/processor.h>
 #include <asm/irq.h>
 #include <asm/timer.h>
 #include <asm/nmi.h>
+#include <asm/compat.h>
 #include <asm/smp.h>
 #include "entry.h"