Remove xfa_fm2js.h and IWYU.

xfa/src/fxfa/src/fm2js/xfa_fm2js.h

Index: xfa/src/fxfa/src/fm2js/xfa_fm2js.h
diff --git a/xfa/src/fxfa/src/fm2js/xfa_fm2js.h b/xfa/src/fxfa/src/fm2js/xfa_fm2js.h
deleted file mode 100644
index 10ff4151419ad2f376a9f7ff3e28fe36f9293618..0000000000000000000000000000000000000000
--- a/xfa/src/fxfa/src/fm2js/xfa_fm2js.h
+++ /dev/null
@@ -1,32 +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
-
-#ifndef XFA_SRC_FXFA_SRC_FM2JS_XFA_FM2JS_H_
-#define XFA_SRC_FXFA_SRC_FM2JS_XFA_FM2JS_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"
-#include "xfa/src/fxfa/src/fm2js/xfa_error.h"
-#include "xfa/src/fxfa/src/fm2js/xfa_expression.h"
-#include "xfa/src/fxfa/src/fm2js/xfa_fm2jscontext.h"
-#include "xfa/src/fxfa/src/fm2js/xfa_fmparse.h"
-#include "xfa/src/fxfa/src/fm2js/xfa_lexer.h"
-#include "xfa/src/fxfa/src/fm2js/xfa_program.h"
-#include "xfa/src/fxfa/src/fm2js/xfa_simpleexpression.h"
-
-#define RUNTIMEFUNCTIONRETURNVALUE \
-  (FX_WSTRC(L"foxit_xfa_formcalc_runtime_func_return_value"))
-#define EXCLAMATION_IN_IDENTIFIER \
-  (FX_WSTRC(L"foxit_xfa_formcalc__exclamation__"))
-
-#endif  // XFA_SRC_FXFA_SRC_FM2JS_XFA_FM2JS_H_