Remove list property initial code in entity's protected ctor method

modules/EasyAbp.EShop.Orders/src/EasyAbp.EShop.Orders.Domain/EasyAbp/EShop/Orders/Orders/Order.cs

@@ -53,7 +53,6 @@ namespace EasyAbp.EShop.Orders.Orders
 
         protected Order()
         {
-            OrderLines = new List<OrderLine>();
         }
 
         public Order(

modules/EasyAbp.EShop.Products/src/EasyAbp.EShop.Products.Domain/EasyAbp/EShop/Products/Products/Product.cs

@@ -37,8 +37,6 @@ namespace EasyAbp.EShop.Products.Products
 
         protected Product()
         {
-            ProductAttributes = new List<ProductAttribute>();
-            ProductSkus = new List<ProductSku>();
         }
 
         public Product(
@@ -65,6 +63,7 @@ namespace EasyAbp.EShop.Products.Products
             IsHidden = isHidden;
             MediaResources = mediaResources;
             DisplayOrder = displayOrder;
+            
             ProductAttributes = new List<ProductAttribute>();
             ProductSkus = new List<ProductSku>();
         }

modules/EasyAbp.EShop.Products/src/EasyAbp.EShop.Products.Domain/EasyAbp/EShop/Products/Products/ProductAttribute.cs

@@ -19,7 +19,6 @@ namespace EasyAbp.EShop.Products.Products
 
         protected ProductAttribute()
         {
-            ProductAttributeOptions = new List<ProductAttributeOption>();
         }
         
         public ProductAttribute(