Remove -webkit-column-progression and -webkit-column-axis properties.

Only needed by Apple's setPagination API, which doesn't exist in Blink anymore.

Link to "intent to remove" post:
https://groups.google.com/a/chromium.org/forum/#!topic/blink-dev/7n-oLhmTkuM

Review URL: https://codereview.chromium.org/201573009

git-svn-id: svn://svn.chromium.org/blink/trunk@170043 bbb929c8-8fbe-4397-9dbb-9b2b20218538