sh64: arch/sh64/kernel/signal.c: duplicate include removal

Remove the duplicate inclusion of linux/personality.h from
arch/sh64/kernel/signal.c
Signed-off-by: NJesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

arch/sh64/kernel/signal.c

@@ -25,7 +25,6 @@
 #include <linux/ptrace.h>
 #include <linux/unistd.h>
 #include <linux/stddef.h>
-#include <linux/personality.h>
 #include <asm/ucontext.h>
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>