DoSaveCompleted updates the SwViewShell and recent file lists after
the document was saved via DoSaveAs. So we can simply drop the
call and delete the SfxMedium to save a copy.

Change-Id: I04a0710949ca60e1ff4cab24c6b504deb130db63
Reviewed-on: https://gerrit.libreoffice.org/10983Reviewed-by: Michael Stahl <mstahl@redhat.com>
Tested-by: Michael Stahl <mstahl@redhat.com>