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/bitmap.h

@@ -104,13 +104,6 @@ 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);
 
@@ -177,7 +170,6 @@ public:
     wxMask *GetMask() const;
     void SetMask(wxMask *mask) ;
 
-    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; }