Warning fixes found under hardest mode of OpenWatcom. Seems clean in Borland, MinGW and DMC.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@29684 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

samples/nativdlg/nativdlg.cpp

@@ -34,11 +34,6 @@
 
 IMPLEMENT_APP(MyApp)
 
-// Testing of ressources
-MyApp::MyApp()
-{
-}
-
 bool MyApp::OnInit(void)
 {
   // Create the main frame window

samples/nativdlg/nativdlg.h

@@ -17,7 +17,7 @@
 class MyApp: public wxApp
 {
   public:
-    MyApp(void) ;
+    MyApp(void){};
     bool OnInit(void);
 };