Remove GTK AX support, we've never used it

Source/WebCore/accessibility/atk/WebKitAccessibleWrapperAtk.h

Index: Source/WebCore/accessibility/atk/WebKitAccessibleWrapperAtk.h
diff --git a/Source/WebCore/accessibility/atk/WebKitAccessibleWrapperAtk.h b/Source/WebCore/accessibility/atk/WebKitAccessibleWrapperAtk.h
deleted file mode 100644
index 3080aeb93ead0d683e658a0e0304a5ec531627e9..0000000000000000000000000000000000000000
--- a/Source/WebCore/accessibility/atk/WebKitAccessibleWrapperAtk.h
+++ /dev/null
@@ -1,89 +0,0 @@
-/*
- * Copyright (C) 2008 Nuanti Ltd.
- * Copyright (C) 2009 Jan Alonzo
- * Copyright (C) 2009, 2010, 2011, 2012 Igalia S.L.
- * Copyright (C) 2013 Samsung Electronics
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public License
- * along with this library; see the file COPYING.LIB.  If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- */
-
-#ifndef WebKitAccessibleWrapperAtk_h
-#define WebKitAccessibleWrapperAtk_h
-
-#if HAVE(ACCESSIBILITY)
-
-#include <atk/atk.h>
-#include <wtf/text/WTFString.h>
-
-namespace WebCore {
-class AccessibilityObject;
-}
-
-G_BEGIN_DECLS
-
-#define WEBKIT_TYPE_ACCESSIBLE                  (webkitAccessibleGetType ())
-#define WEBKIT_ACCESSIBLE(obj)                  (G_TYPE_CHECK_INSTANCE_CAST ((obj), WEBKIT_TYPE_ACCESSIBLE, WebKitAccessible))
-#define WEBKIT_ACCESSIBLE_CLASS(klass)          (G_TYPE_CHECK_CLASS_CAST ((klass), WEBKIT_TYPE_ACCESSIBLE, WebKitAccessibleClass))
-#define WEBKIT_IS_ACCESSIBLE(obj)               (G_TYPE_CHECK_INSTANCE_TYPE ((obj), WEBKIT_TYPE_ACCESSIBLE))
-#define WEBKIT_IS_ACCESSIBLE_CLASS(klass)       (G_TYPE_CHECK_CLASS_TYPE ((klass), WEBKIT_TYPE_ACCESSIBLE))
-#define WEBKIT_ACCESSIBLE_GET_CLASS(obj)        (G_TYPE_INSTANCE_GET_CLASS ((obj), WEBKIT_TYPE_ACCESSIBLE, WebKitAccessibleClass))
-
-typedef struct _WebKitAccessible                WebKitAccessible;
-typedef struct _WebKitAccessibleClass           WebKitAccessibleClass;
-typedef struct _WebKitAccessiblePrivate         WebKitAccessiblePrivate;
-
-
-struct _WebKitAccessible {
-    AtkObject parent;
-    WebCore::AccessibilityObject* m_object;
-
-    WebKitAccessiblePrivate *priv;
-};
-
-struct _WebKitAccessibleClass {
-    AtkObjectClass parentClass;
-};
-
-enum AtkCachedProperty {
-    AtkCachedAccessibleName,
-    AtkCachedAccessibleDescription,
-    AtkCachedActionName,
-    AtkCachedActionKeyBinding,
-    AtkCachedDocumentLocale,
-    AtkCachedDocumentType,
-    AtkCachedDocumentEncoding,
-    AtkCachedDocumentURI,
-    AtkCachedImageDescription
-};
-
-GType webkitAccessibleGetType(void) G_GNUC_CONST;
-
-WebKitAccessible* webkitAccessibleNew(WebCore::AccessibilityObject*);
-
-WebCore::AccessibilityObject* webkitAccessibleGetAccessibilityObject(WebKitAccessible*);
-
-void webkitAccessibleDetach(WebKitAccessible*);
-
-AtkObject* webkitAccessibleGetFocusedElement(WebKitAccessible*);
-
-WebCore::AccessibilityObject* objectFocusedAndCaretOffsetUnignored(WebCore::AccessibilityObject*, int& offset);
-
-const char* cacheAndReturnAtkProperty(AtkObject*, AtkCachedProperty, String value);
-
-G_END_DECLS
-
-#endif
-#endif // WebKitAccessibleWrapperAtk_h