header cleaning: don't include smp_lock.h when not used

Remove includes of <linux/smp_lock.h> where it is not used/needed.
Suggested by Al Viro.

Builds cleanly on x86_64, i386, alpha, ia64, powerpc, sparc,
sparc64, and arm (all 59 defconfigs).

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

arch/m32r/kernel/m32r_ksyms.c

@@ -5,7 +5,6 @@
 #include <linux/sched.h>
 #include <linux/in6.h>
 #include <linux/interrupt.h>
-#include <linux/smp_lock.h>
 #include <linux/string.h>
 
 #include <asm/semaphore.h>

arch/m32r/kernel/signal.c

@@ -13,7 +13,6 @@
 #include <linux/sched.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
-#include <linux/smp_lock.h>
 #include <linux/kernel.h>
 #include <linux/signal.h>
 #include <linux/errno.h>

arch/m32r/kernel/smpboot.c

@@ -43,7 +43,6 @@
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
-#include <linux/smp_lock.h>
 #include <linux/irq.h>
 #include <linux/bootmem.h>
 #include <linux/delay.h>

arch/m32r/kernel/sys_m32r.c

@@ -11,7 +11,6 @@
 #include <linux/sched.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
-#include <linux/smp_lock.h>
 #include <linux/sem.h>
 #include <linux/msg.h>
 #include <linux/shm.h>