make double_quotes write option not dependent on double_quotes flag

This gives consistent results without depending on another flag.

src/machine/machine_state.rs

@@ -786,7 +786,6 @@ impl MachineState {
                     &mut self.atom_tbl,
                     &mut self.stack,
                     op_dir,
-                    self.flags,
                     PrinterOutputter::new(),
                     term_to_be_printed,
                 );