Eeschema: fix BOM path bug in stand alone mode.

Fixes https://gitlab.com/kicad/code/kicad/-/issues/8180

eeschema/bom_plugins.cpp

@@ -2,6 +2,7 @@
  * This program source code file is part of KiCad, a free EDA CAD application.
  *
  * Copyright (C) 2018 CERN
+ * Copyright (C) 2021 KiCad Developers, see AUTHORS.txt for contributors.
  * @author Maciej Suminski <maciej.suminski@cern.ch>
  *
  * This program is free software; you can redistribute it and/or

eeschema/dialogs/dialog_bom.cpp

@@ -457,7 +457,6 @@ void DIALOG_BOM::OnRunPlugin( wxCommandEvent& event )
     // Calculate the xml netlist filename
     wxFileName fn = g_RootSheet->GetScreen()->GetFileName();
 
-    fn.SetPath( wxPathOnly( Prj().GetProjectFullName() ) );
     fn.ClearExt();
 
     wxString fullfilename = fn.GetFullPath();