great copy ctor/assignment operators cleanup by Paul Cornett (patch 1307665)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@37402 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/motif/icon.h

@@ -20,9 +20,6 @@ class WXDLLEXPORT wxIcon : public wxBitmap
 public:
     wxIcon();
 
-    // Copy constructors
-    inline wxIcon(const wxIcon& icon) { Ref(icon); }
-
     // Initialize with XBM data
     wxIcon(const char bits[], int width, int height);
 
@@ -58,8 +55,6 @@ public:
     // ctors, assignment operators...), but it's ok to have such function
     void CopyFromBitmap(const wxBitmap& bmp);
 
-    wxIcon& operator = (const wxIcon& icon)
-        { if (this != &icon) Ref(icon); return *this; }
     bool operator == (const wxIcon& icon) const
         { return m_refData == icon.m_refData; }
     bool operator != (const wxIcon& icon) const