[GTK] Remove all deprecated API from GObject DOM bindings
https://bugs.webkit.org/show_bug.cgi?id=133728

Reviewed by Martin Robinson.

Source/WebCore:
Remove all deprecated symbols from the GObject DOM bindings,
keeping the deprecation infraestructure for future API breaks.

* PlatformGTK.cmake: Remove WebKitDOMDeprecated files from the
build.
* bindings/gobject/WebKitDOMDeprecated.cpp: Removed.
* bindings/gobject/WebKitDOMDeprecated.h: Removed.
* bindings/gobject/WebKitDOMDeprecated.symbols: Removed.
* bindings/gobject/webkitdom.symbols: Updated to the current API.
* bindings/scripts/CodeGeneratorGObject.pm:
(SkipFunction): Remove exceptions for deprecated API.
(GetFunctionDeprecationInformation): Ditto.
(GetEffectiveFunctionName): Ditto.
* bindings/scripts/test/GObject/WebKitDOMTestEventTarget.cpp:
(webkit_dom_test_event_target_dispatch_event): Deleted.
* bindings/scripts/test/GObject/WebKitDOMTestEventTarget.h:
* bindings/scripts/test/GObject/WebKitDOMTestEventTarget.symbols:
* dom/Element.idl: Remove GObject exception.

Tools:
* gtk/webkitdom.py:
(WebKitDOMDocGenerator): Remove all deleted classes from the list.
(WebKitDOMDocGeneratorSections.__init__): Fix a typo in member initialization.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@169931 268f45cc-cd09-0410-ab3c-d52691b4dbfc