Remove drop argument in part removal methods and reorganize code (#2289)

* Remove IBodyPart.Drop and move attach/detach logic to body part code

* Fix stack overflow

Content.Shared/GameObjects/Components/Body/Part/IBodyPart.cs

@@ -9,7 +9,7 @@ namespace Content.Shared.GameObjects.Components.Body.Part
 {
     public interface IBodyPart : IComponent, IBodyPartContainer
     {
-        new IBody? Body { get; set; }
+        IBody? Body { get; set; }
 
         /// <summary>
         ///     <see cref="BodyPartType"/> that this <see cref="IBodyPart"/> is considered
@@ -46,8 +46,6 @@ namespace Content.Shared.GameObjects.Components.Body.Part
 
         public BodyPartSymmetry Symmetry { get; }
 
-        bool Drop();
-
         /// <summary>
         ///     Checks if the given <see cref="SurgeryType"/> can be used on
         ///     the current state of this <see cref="IBodyPart"/>.