Unreviewed, rolling out r154640.

Unreviewed, rolling out r154640.
http://trac.webkit.org/changeset/154640
https://bugs.webkit.org/show_bug.cgi?id=120329

Caused flaky crashes on a lot of editing tests (Requested by
rniwa on #webkit).

* WebKitTestRunner/WebKitTestRunner.xcodeproj/project.pbxproj:
* WebKitTestRunner/mac/PoseAsClass.h: Removed.
* WebKitTestRunner/mac/PoseAsClass.mm: Removed.
* WebKitTestRunner/mac/TestControllerMac.mm:
(WTR::TestController::platformInitialize):
(WTR::TestController::platformDestroy):
* WebKitTestRunner/mac/WebKitTestRunnerPasteboard.h: Removed.
* WebKitTestRunner/mac/WebKitTestRunnerPasteboard.mm: Removed.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@154650 268f45cc-cd09-0410-ab3c-d52691b4dbfc