Remove WebKit2 framework from generate-forwarding-headers.pl
https://bugs.webkit.org/show_bug.cgi?id=133214

Since renaming WebKit2.framework to WebKit.framework is done and all WebKit2/*.h includes
were renamed to WebKit/*.h, generating forwarding headers for WebKit2/*.h framework style
headers is not necessary anymore.

Patch by Martin Hodovan <mhodovan.u-szeged@partner.samsung.com> on 2014-05-26
Reviewed by Darin Adler.

* Scripts/generate-forwarding-headers.pl:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@169339 268f45cc-cd09-0410-ab3c-d52691b4dbfc