[SCTP]: #if 0 sctp_update_copy_cksum()

sctp_update_copy_cksum() is no longer used.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Acked-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/net/sctp/sctp.h

@@ -156,7 +156,6 @@ int sctp_primitive_ASCONF(struct sctp_association *, void *arg);
 __u32 sctp_start_cksum(__u8 *ptr, __u16 count);
 __u32 sctp_update_cksum(__u8 *ptr, __u16 count, __u32 cksum);
 __u32 sctp_end_cksum(__u32 cksum);
-__u32 sctp_update_copy_cksum(__u8 *, __u8 *, __u16 count, __u32 cksum);
 
 /*
  * sctp/input.c

net/sctp/crc32c.c

@@ -170,6 +170,7 @@ __u32 sctp_update_cksum(__u8 *buffer, __u16 length, __u32 crc32)
 	return crc32;
 }
 
+#if 0
 __u32 sctp_update_copy_cksum(__u8 *to, __u8 *from, __u16 length, __u32 crc32)
 {
 	__u32 i;
@@ -186,6 +187,7 @@ __u32 sctp_update_copy_cksum(__u8 *to, __u8 *from, __u16 length, __u32 crc32)
 
 	return crc32;
 }
+#endif  /*  0  */
 
 __u32 sctp_end_cksum(__u32 crc32)
 {