Revert "Make resetting contacts on the client only set is touching if…

… it is true" (#5469)

This reverts commit cdb9474.

Robust.Shared/Physics/Dynamics/Contacts/Contact.cs

@@ -31,6 +31,8 @@
 using System.Collections.Generic;
 using System.Numerics;
 using Robust.Shared.GameObjects;
+using Robust.Shared.IoC;
+using Robust.Shared.Maths;
 using Robust.Shared.Physics.Collision;
 using Robust.Shared.Physics.Collision.Shapes;
 using Robust.Shared.Physics.Components;
@@ -259,9 +261,7 @@ internal void UpdateIsTouching(Transform bodyATransform, Transform bodyBTransfor
             {
                 var manifold = Manifold;
                 Evaluate(ref manifold, bodyATransform, bodyBTransform);
-
-                if (IsTouching)
-                    IsTouching = manifold.PointCount > 0;
+                IsTouching = manifold.PointCount > 0;
             }
         }