sctp: remove the typedef sctp_data_chunk_t

This patch is to remove the typedef sctp_data_chunk_t, and replace
with struct sctp_data_chunk in the places where it's using this
typedef.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/sctp.h b/include/linux/sctp.h
index 55d84c1..91c888f 100644
--- a/include/linux/sctp.h
+++ b/include/linux/sctp.h
@@ -235,10 +235,10 @@ struct sctp_datahdr {
 	__u8  payload[0];
 };
 
-typedef struct sctp_data_chunk {
+struct sctp_data_chunk {
 	struct sctp_chunkhdr chunk_hdr;
 	struct sctp_datahdr data_hdr;
-} sctp_data_chunk_t;
+};
 
 /* DATA Chuck Specific Flags */
 enum {