[WK2] Remove web intents callbacks
https://bugs.webkit.org/show_bug.cgi?id=109654

Reviewed by Benjamin Poulain.

Web intents was removed by r142549.

Source/WebKit2:

* Shared/APIClientTraits.cpp:
(WebKit):
* Shared/APIClientTraits.h:
* UIProcess/API/C/WKPage.h:
* UIProcess/API/gtk/WebKitLoaderClient.cpp:
(attachLoaderClientToView):
* WebProcess/InjectedBundle/API/c/WKBundlePage.h:
* WebProcess/qt/QtBuiltinBundlePage.cpp:
(WebKit::QtBuiltinBundlePage::QtBuiltinBundlePage):

Tools:

* MiniBrowser/mac/WK2BrowserWindowController.m:
(-[WK2BrowserWindowController awakeFromNib]):
* WebKitTestRunner/InjectedBundle/InjectedBundlePage.cpp:
(WTR::InjectedBundlePage::InjectedBundlePage):
* WebKitTestRunner/TestController.cpp:
(WTR::TestController::createWebViewWithOptions):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@142736 268f45cc-cd09-0410-ab3c-d52691b4dbfc