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/joytest/joytest.cpp

@@ -132,7 +132,7 @@ void MyCanvas::OnJoystickEvent(wxJoystickEvent& event)
         ymax += abs(ymin);
         pt.y += abs(ymin);
     }
-    
+
     // Scale to canvas size
     int cw, ch;
     GetSize(&cw, &ch);
@@ -178,11 +178,6 @@ MyFrame::MyFrame(wxFrame *parent, const wxString& title, const wxPoint& pos,
     canvas = new MyCanvas(this);
 }
 
-MyFrame::~MyFrame()
-{
-    // Empty
-}
-
 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
 {
     Close(true);