ceph: remove redundant assignment to variable i

The variable i is being initialized with a value that is never read
and it is being updated later with a new value in a for-loop.  The
initialization is redundant and can be removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>

fs/ceph/mds_client.c

@@ -1239,7 +1239,7 @@ static struct ceph_msg *create_session_open_msg(struct ceph_mds_client *mdsc, u6
 {
 	struct ceph_msg *msg;
 	struct ceph_mds_session_head *h;
-	int i = -1;
+	int i;
 	int extra_bytes = 0;
 	int metadata_key_count = 0;
 	struct ceph_options *opt = mdsc->fsc->client->options;