Some redundant injections in commands

[mmramezani]

https://github.com/dotnet-architecture/eShopOnContainers/blob/9e5cd835b44aaa65c885d1a22165a3136a67b402/src/Services/Ordering/Ordering.API/Application/Commands/CreateOrderDraftCommandHandler.cs#L12

Hi guys As I see there is a MediatR decreation and injection which is not needed. Also observed cases like this in other places.