Make XFA public more closely match master.

public/fpdf_doc.h

Index: public/fpdf_doc.h
diff --git a/public/fpdf_doc.h b/public/fpdf_doc.h
index 49793e6b191903ef86c6fcebe467e9f55d6bd3c6..de05eb3a59ec4e101ab6bd2425156a214198c7e2 100644
--- a/public/fpdf_doc.h
+++ b/public/fpdf_doc.h
@@ -207,10 +207,6 @@ DLLEXPORT unsigned long STDCALL FPDFDest_GetPageIndex(FPDF_DOCUMENT document,
 //     convert coordinates from screen system to page system using
 //     FPDF_DeviceToPage().
 //
-// Notes:
-//     The method can not support this feature for the document consists of
-//     dynamic XFA fields.
-//
 DLLEXPORT FPDF_LINK STDCALL FPDFLink_GetLinkAtPoint(FPDF_PAGE page,
                                                     double x,
                                                     double y);
@@ -231,11 +227,6 @@ DLLEXPORT FPDF_LINK STDCALL FPDFLink_GetLinkAtPoint(FPDF_PAGE page,
 //     convert coordinates from screen system to page system using
 //     FPDF_DeviceToPage().
 //
-// Notes:
-//     The method can not support this feature for the document consists of
-//     dynamic XFA fields.
-//
-//
 DLLEXPORT int STDCALL
 FPDFLink_GetLinkZOrderAtPoint(FPDF_PAGE page, double x, double y);
 
@@ -275,9 +266,6 @@ DLLEXPORT FPDF_ACTION STDCALL FPDFLink_GetAction(FPDF_LINK link);
 //          linkAnnot[out]      -   Receive the link handle.
 // Return value:
 //          TRUE if succceed, else False;
-// Notes:
-//          The method can not support this feature for the document consists of
-//          dynamic XFA fields.
 //
 DLLEXPORT FPDF_BOOL STDCALL FPDFLink_Enumerate(FPDF_PAGE page,
                                                int* startPos,