https://bugs.webkit.org/show_bug.cgi?id=122623

Reviewed by Brent Fulgham.

Source/WebKit:

Remove files from VS projects.

* WebKit.vcxproj/Interfaces/Interfaces.vcxproj:
* WebKit.vcxproj/Interfaces/Interfaces.vcxproj.filters:
* WebKit.vcxproj/WebKit/WebKit.vcxproj:
* WebKit.vcxproj/WebKit/WebKit.vcxproj.filters:

Source/WebKit/win:

WebScrollBar isn't used by anyone, remove it.

* ForEachCoClass.h:
* Interfaces/IWebScrollBarDelegatePrivate.idl: Removed.
* Interfaces/IWebScrollBarPrivate.idl: Removed.
* Interfaces/WebKit.idl:
* WebKitClassFactory.cpp:
(WebKitClassFactory::CreateInstance):
* WebScrollBar.cpp: Removed.
* WebScrollBar.h: Removed.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@157263 268f45cc-cd09-0410-ab3c-d52691b4dbfc