Remove the

// Indentation settings for Vim and Emacs
etc. lines from all files, as Campbell's patch (except for other changes to Languages.cpp)

src/prefs/ExtImportPrefs.cpp

@@ -780,14 +780,3 @@ void ExtImportPrefsDropTarget::SetDataObject(wxDataObject* data)
 {
    this->m_dataObject = data;
 }
-
-// Indentation settings for Vim and Emacs and unique identifier for Arch, a
-// version control system. Please do not modify past this point.
-//
-// Local Variables:
-// c-basic-offset: 3
-// indent-tabs-mode: nil
-// End:
-//
-// vim: et sts=3 sw=3
-// arch-tag: 427b9e64-3fc6-40ef-bbf8-e6fff1d442f0