Added a setting for whether JavaScript markup is enabled
https://bugs.webkit.org/show_bug.cgi?id=112999

Rolled out a line from r146664 that was left over from before I adopted
the Settings.in way of adding a new setting.

Reviewed by Ryosuke Niwa.

* WebProcess/InjectedBundle/InjectedBundle.cpp:
(WebKit::InjectedBundle::overrideBoolPreferenceForTestRunner): No need
to initialize / override -- Settings.in settings do this automatically.

Also, dydx noticed that this line of code had a typo, and was totaly wrong.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@146722 268f45cc-cd09-0410-ab3c-d52691b4dbfc