Force common flow of connection queries

Force queryConnection() to always call back to approveConnection()
rather than return special values. This makes the flow easier to
follow as it will be the same in all cases.
diff --git a/win/winvnc/VNCServerWin32.h b/win/winvnc/VNCServerWin32.h
index 271cb76..58c3f6c 100644
--- a/win/winvnc/VNCServerWin32.h
+++ b/win/winvnc/VNCServerWin32.h
@@ -81,9 +81,8 @@
     // VNCServerST::QueryConnectionHandler interface
     // Callback used to prompt user to accept or reject a connection.
     // CALLBACK IN VNCServerST "HOST" THREAD
-    virtual rfb::VNCServerST::queryResult queryConnection(network::Socket* sock,
-                                                          const char* userName,
-                                                          char** reason);
+    virtual void queryConnection(network::Socket* sock,
+                                 const char* userName);
 
     // SocketManager::AddressChangeNotifier interface
     // Used to keep tray icon up to date