Remove IXFA_Parser, cleanup XFA parser code.

xfa/fxfa/parser/xfa_document_datamerger_imp.cpp

Index: xfa/fxfa/parser/xfa_document_datamerger_imp.cpp
diff --git a/xfa/fxfa/parser/xfa_document_datamerger_imp.cpp b/xfa/fxfa/parser/xfa_document_datamerger_imp.cpp
index 94aa07406b1e9cb6e0fb773582f208ddf125e5b7..72d07d2a03293eabd3449946306faeb74cdbca98 100644
--- a/xfa/fxfa/parser/xfa_document_datamerger_imp.cpp
+++ b/xfa/fxfa/parser/xfa_document_datamerger_imp.cpp
@@ -16,7 +16,6 @@
 #include "xfa/fxfa/parser/xfa_document_layout_imp.h"
 #include "xfa/fxfa/parser/xfa_localemgr.h"
 #include "xfa/fxfa/parser/xfa_object.h"
-#include "xfa/fxfa/parser/xfa_parser.h"
 #include "xfa/fxfa/parser/xfa_parser_imp.h"
 #include "xfa/fxfa/parser/xfa_script.h"
 #include "xfa/fxfa/parser/xfa_script_imp.h"
@@ -584,8 +583,8 @@ static CXFA_Node* XFA_NodeMerge_CloneOrMergeInstanceManager(
     pExistingNode->SetTemplateNode(pTemplateNode);
     return pExistingNode;
   }
-  CXFA_Node* pNewNode = pDocument->GetParser()->GetFactory()->CreateNode(
-      XFA_XDPPACKET_Form, XFA_Element::InstanceManager);
+  CXFA_Node* pNewNode =
+      pDocument->CreateNode(XFA_XDPPACKET_Form, XFA_Element::InstanceManager);
   ASSERT(pNewNode);
   wsInstMgrNodeName =
       FX_WSTRC(L"_") + pTemplateNode->GetCData(XFA_ATTRIBUTE_Name);