Service Kit: Fix behavior in release mode

* Code put inside an ASSERT will not be executed at all in release mode.
 * In release builds, don't print any messages to the standard output.

src/kits/network/libnetapi/UrlProtocolDispatchingListener.cpp

@@ -127,5 +127,10 @@ BUrlProtocolDispatchingListener::_SendMessage(BMessage* message,
 	message->AddPointer(kUrlProtocolCaller, caller);
 	message->AddInt8(kUrlProtocolMessageType, notification);
 
-	ASSERT(fMessenger.SendMessage(message) == B_OK);
+#ifdef DEBUG
+	status_t result = fMessenger.SendMessage(message);
+	ASSERT(result == B_OK);
+#else
+	fMessenger.SendMessage(message);
+#endif
 }

src/kits/network/libnetapi/UrlProtocolListener.cpp

@@ -67,6 +67,7 @@ void
 BUrlProtocolListener::DebugMessage(BUrlRequest* caller,
 	BUrlProtocolDebugMessage type, const char* text)
 {
+#ifdef DEBUG
 	switch (type) {
 		case B_URL_PROTOCOL_DEBUG_TEXT:
 			cout << "   ";
@@ -88,4 +89,5 @@ BUrlProtocolListener::DebugMessage(BUrlRequest* caller,
 	}
 	
 	cout << " " << caller->Protocol() << ": " << text << endl;
+#endif
 }