update ConsoleInterface

app/src/main/java/sudoku/io/ConsoleInterface.java

@@ -324,11 +324,13 @@ public class ConsoleInterface {
      */
     private void turn(MultiDoku doku, List<String> listSymbols, int width, int height) {
         System.out.println(
-                "You can now put a number in a cell ('play', default), save the state of the doku ('save'), show a solution ('solution') or exit the program ('exit').");
+                "You can now put a number in a cell ('play', default), show a solution ('solution') or exit the program ('exit').");
         switch (reader.next()) {
+            /*
             case "save":
                 saveMultiDoku(doku);
                 break;
+                */
             case "solution":
                 solve(doku, listSymbols, width, height);
                 break;