Simplify PDFium by removing code that's not used in the open source repo.

fpdfsdk/src/jsapi/fxjs_v8.cpp

 // 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
 
 #include "../../../core/include/fxcrt/fx_basic.h"
 #include "../../../core/include/fxcrt/fx_ext.h" 
 #include "../../include/jsapi/fxjs_v8.h"
 #include "../../include/fsdk_define.h"
@@ skipping 291 matching lines @@
                         JS_FreePrivate(pObj);
                 }
                 delete pObjDef;
         }
         delete pArray;
         isolate->SetData(0,NULL);
 }
 
 void JS_Initial() 
 {
-#ifndef FOXIT_CHROME_BUILD
-        v8::V8::InitializeICU();
-#endif
 }
 void JS_Release()
 {
 
 }
 int JS_Parse(IJS_Runtime* pJSRuntime, IFXJS_Context* pJSContext, const wchar_t* script, long length, FXJSErr* perror)
 {
         v8::Isolate* isolate = (v8::Isolate*)pJSRuntime;
         v8::Isolate::Scope isolate_scope(isolate);
         v8::TryCatch try_catch;
@@ skipping 709 matching lines @@
 {
         return d != d;
 }
 
 double JS_LocalTime(double d)
 {
         return JS_GetDateTime() + _getDaylightSavingTA(d);
 }
 
 //JavaScript time implement End.