fs/debugsfs: remove unnecessary inode->i_private initialization

inode->i_private is promised to be NULL on allocation, no need to set it
explicitly.

Signed-off-by: Yan Hong <clouds.yan@gmail.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
index b607d92..153bb1e 100644
--- a/fs/debugfs/inode.c
+++ b/fs/debugfs/inode.c
@@ -59,7 +59,6 @@
 		case S_IFDIR:
 			inode->i_op = &simple_dir_inode_operations;
 			inode->i_fop = &simple_dir_operations;
-			inode->i_private = NULL;
 
 			/* directory inodes start off with i_nlink == 2
 			 * (for "." entry) */