Btrfs: trivial include fixups

Almost none of the files including module.h need to do so,
remove them.

Include sched.h in extent-tree.c to silence a warning about cond_resched()
being undeclared.
Signed-off-by: NZach Brown <zach.brown@oracle.com>
Signed-off-by: NChris Mason <chris.mason@oracle.com>

fs/btrfs/bit-radix.c

@@ -16,7 +16,6 @@
  * Boston, MA 021110-1307, USA.
  */
 
-#include <linux/module.h>
 #include "bit-radix.h"
 
 #define BIT_ARRAY_BYTES 256

fs/btrfs/ctree.c

@@ -16,7 +16,6 @@
  * Boston, MA 021110-1307, USA.
  */
 
-#include <linux/module.h>
 #include "ctree.h"
 #include "disk-io.h"
 #include "transaction.h"

fs/btrfs/dir-item.c

@@ -16,7 +16,6 @@
  * Boston, MA 021110-1307, USA.
  */
 
-#include <linux/module.h>
 #include "ctree.h"
 #include "disk-io.h"
 #include "hash.h"

fs/btrfs/disk-io.c

@@ -16,7 +16,6 @@
  * Boston, MA 021110-1307, USA.
  */
 
-#include <linux/module.h>
 #include <linux/fs.h>
 #include <linux/blkdev.h>
 #include <linux/crc32c.h>

fs/btrfs/extent-tree.c

@@ -16,7 +16,7 @@
  * Boston, MA 021110-1307, USA.
  */
 
-#include <linux/module.h>
+#include <linux/sched.h>
 #include "ctree.h"
 #include "disk-io.h"
 #include "print-tree.h"

fs/btrfs/file-item.c

@@ -16,7 +16,6 @@
  * Boston, MA 021110-1307, USA.
  */
 
-#include <linux/module.h>
 #include "ctree.h"
 #include "disk-io.h"
 #include "transaction.h"

fs/btrfs/file.c

@@ -16,7 +16,6 @@
  * Boston, MA 021110-1307, USA.
  */
 
-#include <linux/module.h>
 #include <linux/buffer_head.h>
 #include <linux/fs.h>
 #include <linux/pagemap.h>

fs/btrfs/inode-item.c

@@ -16,7 +16,6 @@
  * Boston, MA 021110-1307, USA.
  */
 
-#include <linux/module.h>
 #include "ctree.h"
 #include "disk-io.h"
 #include "transaction.h"

fs/btrfs/inode-map.c

@@ -16,7 +16,6 @@
  * Boston, MA 021110-1307, USA.
  */
 
-#include <linux/module.h>
 #include "ctree.h"
 #include "disk-io.h"
 #include "transaction.h"

fs/btrfs/inode.c

@@ -16,7 +16,6 @@
  * Boston, MA 021110-1307, USA.
  */
 
-#include <linux/module.h>
 #include <linux/buffer_head.h>
 #include <linux/fs.h>
 #include <linux/pagemap.h>

fs/btrfs/print-tree.c

@@ -16,7 +16,6 @@
  * Boston, MA 021110-1307, USA.
  */
 
-#include <linux/module.h>
 #include "ctree.h"
 #include "disk-io.h"
 #include "print-tree.h"

fs/btrfs/root-tree.c

@@ -16,7 +16,6 @@
  * Boston, MA 021110-1307, USA.
  */
 
-#include <linux/module.h>
 #include "ctree.h"
 #include "transaction.h"
 #include "disk-io.h"

fs/btrfs/sysfs.c

@@ -16,7 +16,6 @@
  * Boston, MA 021110-1307, USA.
  */
 
-#include <linux/module.h>
 #include "ctree.h"
 #include "disk-io.h"
 #include "transaction.h"

fs/btrfs/transaction.c

@@ -16,7 +16,6 @@
  * Boston, MA 021110-1307, USA.
  */
 
-#include <linux/module.h>
 #include <linux/fs.h>
 #include <linux/sched.h>
 #include "ctree.h"