[GFS2] Clean up duplicate includes in fs/gfs2/

This patch cleans up duplicate includes in
	fs/gfs2/
Signed-off-by: NJesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: NSteven Whitehouse <swhiteho@redhat.com>

fs/gfs2/glock.c

@@ -25,8 +25,6 @@
 #include <asm/uaccess.h>
 #include <linux/seq_file.h>
 #include <linux/debugfs.h>
-#include <linux/module.h>
-#include <linux/kallsyms.h>
 
 #include "gfs2.h"
 #include "incore.h"

fs/gfs2/locking/dlm/lock_dlm.h

@@ -13,7 +13,6 @@
 #include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/spinlock.h>
-#include <linux/module.h>
 #include <linux/types.h>
 #include <linux/string.h>
 #include <linux/list.h>

fs/gfs2/locking/nolock/main.c

@@ -9,7 +9,6 @@
 
 #include <linux/module.h>
 #include <linux/slab.h>
-#include <linux/module.h>
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/fs.h>