[NET]: cleanup extra semicolons

Spring cleaning time...

There seems to be a lot of places in the network code that have
extra bogus semicolons after conditionals.  Most commonly is a
bogus semicolon after: switch() { }

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/sctp/debug.c b/net/sctp/debug.c
index 5f5ab28..e8c0f74 100644
--- a/net/sctp/debug.c
+++ b/net/sctp/debug.c
@@ -93,8 +93,9 @@
 		return "FWD_TSN";
 
 	default:
-		return "unknown chunk";
-	};
+		break;
+	}
+
 	return "unknown chunk";
 }