fs/ntfs3: Remove a useless test in 'indx_find()'

'fnd' has been dereferenced several time before, so testing it here is
pointless.
Moreover, all callers of 'indx_find()' already have some error handling
code that makes sure that no NULL 'fnd' is passed.

So, remove the useless test.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Kari Argillander <kari.argillander@gmail.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>

fs/ntfs3/index.c

@@ -1072,9 +1072,7 @@ int indx_find(struct ntfs_index *indx, struct ntfs_inode *ni,
 	if (!e)
 		return -EINVAL;
 
-	if (fnd)
-		fnd->root_de = e;
-
+	fnd->root_de = e;
 	err = 0;
 
 	for (;;) {