Hopefully finish removing the old wxCocoa port.

Get rid of the rest of __WXCOCOA__ tests in the sources.

Drop configure option for using it.

Also remove the documentation for this port.

This should have also been part of r76735.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@76815 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/ribbon/art.h

@@ -928,8 +928,7 @@ protected:
 typedef wxRibbonMSWArtProvider wxRibbonDefaultArtProvider;
 #elif defined(__WXOSX_CARBON__) || \
       defined(__WXOSX_COCOA__) || \
-      defined(__WXOSX_IPHONE__) || \
-      defined(__WXCOCOA__)
+      defined(__WXOSX_IPHONE__)
 // TODO: Once implemented, change typedef to OSX
 // typedef wxRibbonOSXArtProvider wxRibbonDefaultArtProvider;
 typedef wxRibbonAUIArtProvider wxRibbonDefaultArtProvider;