Clean up duplicate includes in fs/ecryptfs/

This patch cleans up duplicate includes in
	fs/ecryptfs/
Signed-off-by: NJesper Juhl <jesper.juhl@gmail.com>
Cc: Michael A Halcrow <mahalcro@us.ibm.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

fs/ecryptfs/main.c

@@ -32,7 +32,6 @@
 #include <linux/crypto.h>
 #include <linux/netlink.h>
 #include <linux/mount.h>
-#include <linux/dcache.h>
 #include <linux/pagemap.h>
 #include <linux/key.h>
 #include <linux/parser.h>