Remove legacy INSPECTOR_SERVER implementation

Remove legacy INSPECTOR_SERVER implementation
https://bugs.webkit.org/show_bug.cgi?id=172966

Reviewed by Žan Doberšek.

.:

* Source/PlatformWin.cmake:

Source/WebInspectorUI:

Remove InspectorFrontendHostStub and thr web sockets initialization.

* UserInterface/Base/InspectorFrontendHostStub.js: Removed.
* UserInterface/Base/Main.js:
(WebInspector.loaded):
* UserInterface/Main.html:
* UserInterface/Test.html:
* WebInspectorUI.vcxproj/WebInspectorUI.vcxproj:
* WebInspectorUI.vcxproj/WebInspectorUI.vcxproj.filters:

Source/WebKit2:

* CMakeLists.txt:
* Platform/Logging.h:
* PlatformWPE.cmake:
* UIProcess/InspectorServer/HTTPRequest.cpp: Removed.
* UIProcess/InspectorServer/HTTPRequest.h: Removed.
* UIProcess/InspectorServer/WebInspectorServer.cpp: Removed.
* UIProcess/InspectorServer/WebInspectorServer.h: Removed.
* UIProcess/InspectorServer/WebSocketServer.cpp: Removed.
* UIProcess/InspectorServer/WebSocketServer.h: Removed.
* UIProcess/InspectorServer/WebSocketServerClient.h: Removed.
* UIProcess/InspectorServer/WebSocketServerConnection.cpp: Removed.
* UIProcess/InspectorServer/WebSocketServerConnection.h: Removed.
* UIProcess/InspectorServer/front-end/inspectorPageIndex.html: Removed.
* UIProcess/InspectorServer/soup/WebSocketServerSoup.cpp: Removed.
* UIProcess/WebInspectorProxy.cpp:
(WebKit::WebInspectorProxy::invalidate):
* UIProcess/WebInspectorProxy.h:
* UIProcess/WebInspectorProxy.messages.in:
* UIProcess/WebPageProxy.cpp:
(WebKit::WebPageProxy::initializeWebPage):
(WebKit::WebPageProxy::preferencesDidChange):
* UIProcess/wpe/WebProcessPoolWPE.cpp:
* WebProcess/WebPage/WebInspector.cpp:
(WebKit::WebInspector::sendMessageToFrontend):
* WebProcess/WebPage/WebInspector.h:
* WebProcess/WebPage/WebInspector.messages.in:

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@217924 268f45cc-cd09-0410-ab3c-d52691b4dbfc