Remove even yet still more traces of v8
https://bugs.webkit.org/show_bug.cgi?id=114693

Reviewed by Anders Carlsson.

../WebCore: 

No behavior change.

* bindings/generic/ActiveDOMCallback.h:
(WebCore::ActiveDOMCallback::isScriptControllerTerminating): Remove a V8-specific
method and the comment referencing it.
* bindings/generic/ActiveDOMCallback.cpp:
(WebCore::ActiveDOMCallback::isScriptControllerTerminating): ditto
* fileapi/File.cpp:
(WebCore::File::File): Remove a comment referencing v8
* inspector/InjectedScriptExterns.js: ditto

../WebKit2: 

* Scripts/generate-forwarding-headers.pl: Remove v8 from list of platforms.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@148534 268f45cc-cd09-0410-ab3c-d52691b4dbfc