cakephp/cakephp — pull request #906 by markstory (2012-10-18 00:29:40+00:00)
Title: Remove support for asset filters.

Remove support for Asset.filter.css and Asset.filter.js. Both of these
features were never fully implemented by CakePHP. Asset filtering is
now easily accomplished using the Dispatcher filters/middleware system
as well.

See http://cakephp.lighthouseapp.com/projects/42648/tickets/3279-remove-assetfilter-in-3x