Removed wxFont::Set/GetNoAntiAliasing() implementations.

Most of them were dummy and didn't do anything and this API was never meant to
be used anyhow.

Keep just the declarations in wxFontBase but mark them as deprecated.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@62349 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/private/fontmgr.h

@@ -237,15 +237,10 @@ public:
     void SetUnderlined(bool underlined);
     void SetEncoding(wxFontEncoding encoding);
 
-    // Unofficial API, don't use
-    void SetNoAntiAliasing(bool no);
-    bool GetNoAntiAliasing() const { return m_noAA; }
-
 private:
     void EnsureValidFont();
 
     wxNativeFontInfo  m_info;
-    bool              m_noAA;
 
     wxFontFace       *m_fontFace;
     wxFontBundle     *m_fontBundle;