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/mac/carbon/pen.h

@@ -52,12 +52,8 @@ public:
   wxPen();
   wxPen(const wxColour& col, int width = 1, int style = wxSOLID);
   wxPen(const wxBitmap& stipple, int width);
-  wxPen(const wxPen& pen)
-      : wxGDIObject()
-      { Ref(pen); }
   ~wxPen();
 
-  inline wxPen& operator = (const wxPen& pen) { if (*this == pen) return (*this); Ref(pen); return *this; }
   inline bool operator == (const wxPen& pen) const { return m_refData == pen.m_refData; }
   inline bool operator != (const wxPen& pen) const { return m_refData != pen.m_refData; }