ext4: remove redundant initialization in ext4_fill_super()

We use kzalloc() to allocate sbi, no need to zero its field.

Signed-off-by: Guo Chao <yan@linux.vnet.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index c2ea525..e1e216f 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -3798,7 +3798,6 @@
 
 	INIT_LIST_HEAD(&sbi->s_orphan); /* unlinked but open files */
 	mutex_init(&sbi->s_orphan_lock);
-	sbi->s_resize_flags = 0;
 
 	sb->s_root = NULL;