[SCTP]: Fix unintentional change to SCTP_ASSERT when !SCTP_DEBUG

A local debugging change slipped into a previous changeset.

When SCTP_DEBUG is off SCTP_ASSERT should do nothing.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h
index b2b40f9..aa6033c 100644
--- a/include/net/sctp/sctp.h
+++ b/include/net/sctp/sctp.h
@@ -255,7 +255,7 @@
 #define SCTP_DEBUG_PRINTK_IPADDR(whatever...)
 #define SCTP_ENABLE_DEBUG
 #define SCTP_DISABLE_DEBUG
-#define SCTP_ASSERT(expr, str, func) BUG_ON(!(expr))
+#define SCTP_ASSERT(expr, str, func)
 
 #endif /* SCTP_DEBUG */