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/classic/bitmap.h

@@ -133,11 +133,6 @@ class WXDLLEXPORT wxBitmap: public wxBitmapBase
 public:
   wxBitmap(); // Platform-specific
 
-  // Copy constructors
-  wxBitmap(const wxBitmap& bitmap)
-      : wxBitmapBase()
-  { Ref(bitmap); }
-
   // Initialize with raw data.
   wxBitmap(const char bits[], int width, int height, int depth = 1);
 
@@ -194,7 +189,6 @@ public:
 
   int GetBitmapType() const;
   
-  inline wxBitmap& operator = (const wxBitmap& bitmap) { if (*this == bitmap) return (*this); Ref(bitmap); return *this; }
   inline bool operator == (const wxBitmap& bitmap) const { return m_refData == bitmap.m_refData; }
   inline bool operator != (const wxBitmap& bitmap) const { return m_refData != bitmap.m_refData; }