Remove FX_DWORD from core/ and delete definition

core/fxcrt/fx_arabic.cpp

Index: core/fxcrt/fx_arabic.cpp
diff --git a/core/fxcrt/fx_arabic.cpp b/core/fxcrt/fx_arabic.cpp
index 10113c9d5eebaf02c8004ceace55f08e2121d975..95fa8f52a0f203d54fc6124c79866cfeaa10fbd8 100644
--- a/core/fxcrt/fx_arabic.cpp
+++ b/core/fxcrt/fx_arabic.cpp
@@ -149,7 +149,7 @@ IFX_ArabicChar* IFX_ArabicChar::Create() {
   return new CFX_ArabicChar;
 }
 FX_BOOL CFX_ArabicChar::IsArabicChar(FX_WCHAR wch) const {
-  FX_DWORD dwRet =
+  uint32_t dwRet =
       kTextLayoutCodeProperties[(uint16_t)wch] & FX_CHARTYPEBITSMASK;
   return dwRet >= FX_CHARTYPE_ArabicAlef;
 }