richedit: Removed unused hwndEdit variable for the RTF parser.

There is no reason for the rich text format parser to need a handle to
the window, and even if there were it has a handle to the editor which
contains a handle to the window.  It is better to remove this
considering we need to cut down on the use of window handles to
implement windowless richedit controls.

dlls/riched20/editor.c

@@ -1470,7 +1470,6 @@ static LRESULT ME_StreamIn(ME_TextEditor *editor, DWORD format, EDITSTREAM *stre
       memset(&parser, 0, sizeof parser);
       RTFSetEditStream(&parser, &inStream);
       parser.rtfFormat = format&(SF_TEXT|SF_RTF);
-      parser.hwndEdit = editor->hWnd;
       parser.editor = editor;
       parser.style = style;
       WriterInit(&parser);

dlls/riched20/rtf.h

@@ -1157,9 +1157,6 @@ struct _RTF_Info {
 
     ME_InStream *stream;
 
-    /* edit window to output to */
-    HWND hwndEdit;
-    
     ME_TextEditor *editor;
     ME_Style *style;