Web Inspector: Cleanup InspectorFrontendHostStub.js
https://bugs.webkit.org/show_bug.cgi?id=118959

Patch by Seokju Kwon <seokju.kwon@gmail.com> on 2013-07-21
Reviewed by Timothy Hatcher.

Remove some functions because we dont use on New Inspector.

* UserInterface/InspectorFrontendHostStub.js:
(.WebInspector.InspectorFrontendHostStub):
(.WebInspector.InspectorFrontendHostStub.prototype.save):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@152956 268f45cc-cd09-0410-ab3c-d52691b4dbfc