Rip out half-backed garden-o-matic features in preparation for wider use

Rip out half-backed garden-o-matic features in preparation for wider use
https://bugs.webkit.org/show_bug.cgi?id=69226

This patch rips out a bunch of half-baked features and cleans up a
bunch of small nits with the core set of features.  We're going to ask
more folks to start using the tool, and having a bunch of half-baked
features around is distracting.  We can add these features back under a
flag and interate on them after we've got the core functionality
nailed.

* BuildSlaveSupport/build.webkit.org-config/public_html/TestFailures/scripts/checkout_unittests.js:
* BuildSlaveSupport/build.webkit.org-config/public_html/TestFailures/scripts/config.js:
* BuildSlaveSupport/build.webkit.org-config/public_html/TestFailures/scripts/garden-o-matic.js:
* BuildSlaveSupport/build.webkit.org-config/public_html/TestFailures/scripts/ui.js:
* BuildSlaveSupport/build.webkit.org-config/public_html/TestFailures/scripts/ui/failures.js:
* BuildSlaveSupport/build.webkit.org-config/public_html/TestFailures/scripts/ui/failures_unittests.js:
* BuildSlaveSupport/build.webkit.org-config/public_html/TestFailures/scripts/ui/notifications.js:
* BuildSlaveSupport/build.webkit.org-config/public_html/TestFailures/scripts/ui/notifications_unittests.js:
* BuildSlaveSupport/build.webkit.org-config/public_html/TestFailures/styles/notifications.css:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@96473 268f45cc-cd09-0410-ab3c-d52691b4dbfc