sctp: remove macros sctp_spin_[un]lock

Redefined spin_[un]lock to sctp_spin_[un]lock for user space friendly
code which we haven't use in years, so removing them.

Signed-off-by: Wang Weidong <wangweidong1@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h
index c17121a..4f77e98 100644
--- a/include/net/sctp/sctp.h
+++ b/include/net/sctp/sctp.h
@@ -171,8 +171,6 @@
  */
 
 /* spin lock wrappers. */
-#define sctp_spin_lock(lock)    spin_lock(lock)
-#define sctp_spin_unlock(lock)  spin_unlock(lock)
 #define sctp_write_lock(lock)   write_lock(lock)
 #define sctp_write_unlock(lock) write_unlock(lock)
 #define sctp_read_lock(lock)    read_lock(lock)
@@ -349,11 +347,11 @@
 	unsigned long flags;
 
 	spin_lock_irqsave(&head->lock, flags);
-	sctp_spin_lock(&list->lock);
+	spin_lock(&list->lock);
 
 	skb_queue_splice_tail_init(list, head);
 
-	sctp_spin_unlock(&list->lock);
+	spin_unlock(&list->lock);
 	spin_unlock_irqrestore(&head->lock, flags);
 }