Remove foxitlib.h and foxitxfa.h and IWYU.

xfa/src/fdp/src/xml/fde_xml_imp.cpp

Index: xfa/src/fdp/src/xml/fde_xml_imp.cpp
diff --git a/xfa/src/fdp/src/xml/fde_xml_imp.cpp b/xfa/src/fdp/src/xml/fde_xml_imp.cpp
index 6304254feb4567cb64c9f86e5b0ab2279c4e4cb3..91486eb29bfcbfc01522f6f99eb7db0dbef78e0d 100644
--- a/xfa/src/fdp/src/xml/fde_xml_imp.cpp
+++ b/xfa/src/fdp/src/xml/fde_xml_imp.cpp
@@ -10,15 +10,16 @@
 
 #include "xfa/src/fgas/include/fx_cpg.h"
 #include "xfa/src/fgas/include/fx_sys.h"
-#include "xfa/src/foxitlib.h"
 
 #define FDE_XMLVALIDCHARRANGENUM 5
-static FX_WCHAR g_XMLValidCharRange[FDE_XMLVALIDCHARRANGENUM][2] = {
+
+static const FX_WCHAR g_XMLValidCharRange[FDE_XMLVALIDCHARRANGENUM][2] = {
     {0x09, 0x09},
     {0x0A, 0x0A},
     {0x0D, 0x0D},
     {0x20, 0xD7FF},
     {0xE000, 0xFFFD}};
+
 FX_BOOL FDE_IsXMLValidChar(FX_WCHAR ch) {
   int32_t iStart = 0, iEnd = FDE_XMLVALIDCHARRANGENUM - 1, iMid;
   while (iStart <= iEnd) {