riched20: Don't call update_caret() from the host.

dlls/riched20/editor.c

@@ -1795,7 +1795,6 @@ static LRESULT ME_StreamIn(ME_TextEditor *editor, DWORD format, EDITSTREAM *stre
   if (!(format & SFF_SELECTION)) {
     ME_ClearTempStyle(editor);
   }
-  update_caret(editor);
   ME_SendSelChange(editor);
   ME_SendRequestResize(editor, FALSE);
 

dlls/riched20/paint.c

@@ -131,6 +131,7 @@ void ME_UpdateRepaint(ME_TextEditor *editor, BOOL update_now)
   /* Ensure that the cursor is visible */
   editor_ensure_visible( editor, &editor->pCursors[0] );
 
+  update_caret( editor );
   ITextHost_TxViewChange(editor->texthost, update_now);
 
   ME_SendSelChange(editor);

dlls/riched20/txthost.c

@@ -1186,7 +1186,6 @@ static LRESULT RichEditWndProc_common( HWND hwnd, UINT msg, WPARAM wparam,
         PAINTSTRUCT ps;
         HBRUSH brush = CreateSolidBrush( ITextHost_TxGetSysColor( &host->ITextHost_iface, COLOR_WINDOW ) );
 
-        update_caret( editor );
         hdc = BeginPaint( editor->hWnd, &ps );
         if (!editor->bEmulateVersion10 || (editor->nEventMask & ENM_UPDATE))
             ME_SendOldNotify( editor, EN_UPDATE );