Remove xfa_common.h and IWYU.

xfa/src/fxfa/src/common/xfa_common.h

Index: xfa/src/fxfa/src/common/xfa_common.h
diff --git a/xfa/src/fxfa/src/common/xfa_common.h b/xfa/src/fxfa/src/common/xfa_common.h
deleted file mode 100644
index 17948d193b906f8e4d112e3b6d11984572398485..0000000000000000000000000000000000000000
--- a/xfa/src/fxfa/src/common/xfa_common.h
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright 2014 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-
-// TODO(thestig): Remove this file and do IWYU.
-
-#ifndef XFA_SRC_FXFA_SRC_COMMON_XFA_COMMON_H_
-#define XFA_SRC_FXFA_SRC_COMMON_XFA_COMMON_H_
-
-#include "xfa/src/fxfa/src/common/xfa_docdata.h"
-#include "xfa/src/fxfa/src/common/xfa_doclayout.h"
-#include "xfa/src/fxfa/src/common/xfa_document.h"
-#include "xfa/src/fxfa/src/common/xfa_fm2jsapi.h"
-#include "xfa/src/fxfa/src/common/xfa_localemgr.h"
-#include "xfa/src/fxfa/src/common/xfa_object.h"
-#include "xfa/src/fxfa/src/common/xfa_parser.h"
-#include "xfa/src/fxfa/src/common/xfa_script.h"
-#include "xfa/src/fxfa/src/common/xfa_utils.h"
-
-#endif  // XFA_SRC_FXFA_SRC_COMMON_XFA_COMMON_H_