Cocoa has been the default toolkit in wxWidgets for a long time. There is really no good reason to use Carbon in 2016 and this removes a lot of unused and unmaintained code.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@54125 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@54117 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775