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/treectrl/treetest.cpp

@@ -363,9 +363,9 @@ void MyFrame::OnIdle(wxIdleEvent& event)
 
 void MyFrame::OnSize(wxSizeEvent& event)
 {
-    if ( m_treeCtrl 
+    if ( m_treeCtrl
 #if wxUSE_LOG
-                    && m_textCtrl 
+                    && m_textCtrl
 #endif // wxUSE_LOG
                                   )
     {
@@ -758,10 +758,6 @@ void MyTreeCtrl::CreateButtonsImageList(int WXUNUSED(size))
 #endif
 }
 
-MyTreeCtrl::~MyTreeCtrl()
-{
-}
-
 int MyTreeCtrl::OnCompareItems(const wxTreeItemId& item1,
                                const wxTreeItemId& item2)
 {
@@ -1168,7 +1164,7 @@ void MyTreeCtrl::OnContextMenu(wxContextMenuEvent& event)
     {
         //attempt to guess where to show the menu
         if (item.IsOk())
-        {   
+        {
             //if an item was clicked, show menu to the right of it
             wxRect rect;
             GetBoundingRect(item, rect, true); //true = only the label
@@ -1184,7 +1180,7 @@ void MyTreeCtrl::OnContextMenu(wxContextMenuEvent& event)
         //event was generated by mouse, use supplied coords
         pt = ScreenToClient(pt);
     }
-    
+
     ShowMenu(item, pt);
 }