Remove outdated comments (#8601)

* remove oudated comments

* remove outdated comments

---------

Co-authored-by: Zekun Wang <zekun.wang@uwaterloo.ca>

Author: fEst1ck

Algorithm.CSharp/BasicTemplateCryptoAlgorithm.cs

@@ -167,11 +167,7 @@ public override void OnData(Slice slice)
                 {
                     if (Portfolio.CashBook["LTC"].Amount > 0)
                     {
-                        // The following two statements currently behave differently if we have initial holdings:
-                        // https://github.com/QuantConnect/Lean/issues/1860
-
                         Liquidate("LTCUSD");
-                        // SetHoldings("LTCUSD", 0);
                     }
                 }
             }

Algorithm.Python/BasicTemplateCryptoAlgorithm.py

@@ -135,11 +135,7 @@ def on_data(self, data):
                     self.buy("LTCUSD", 10)
             else:
                 if self.portfolio.cash_book["LTC"].amount > 0:
-                    # The following two statements currently behave differently if we have initial holdings:
-                    # https://github.com/QuantConnect/Lean/issues/1860
-
                     self.liquidate("LTCUSD")
-                    # self.set_holdings("LTCUSD", 0)
 
     def on_order_event(self, order_event):
         self.debug("{} {}".format(self.time, order_event.to_string()))