no changes, just removed apparently unneeded wxMacBitmapButton class

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@61123 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/osx/bmpbuttn_osx.cpp

@@ -37,7 +37,8 @@ bool wxBitmapButton::Create( wxWindow *parent,
 {
     m_macIsUserPane = false;
 
-    if ( !wxControl::Create( parent, id, pos, size, style, validator, name ) )
+    if ( !wxControl::Create( parent, id, pos, size, style | wxBU_NOTEXT,
+                             validator, name ) )
         return false;
 
     if ( style & wxBU_AUTODRAW )