[PATCH] uml: drop unused buffer_head.h header from hostfs

Drop that header inclusion - I discovered this header was unused while
checking whether I can use the __set_page_dirty_nobuffers speedup suggested by
Andrew Morton.
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade_spam@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

fs/hostfs/hostfs_kern.c

@@ -15,7 +15,6 @@
 #include <linux/pagemap.h>
 #include <linux/blkdev.h>
 #include <linux/list.h>
-#include <linux/buffer_head.h>
 #include <linux/root_dev.h>
 #include <linux/statfs.h>
 #include <linux/kdev_t.h>