Improved Slippery prediction, moves Slippery entirely to Shared (#3677)

* Fixes SlipperyComponent mispredict

* a

* Holy shit

Content.Server/GameObjects/Components/Movement/SlipperyComponent.cs

@@ -1,36 +0,0 @@
-using Content.Shared.Audio;
-using Content.Shared.GameObjects.Components.Movement;
-using Robust.Server.GameObjects;
-using Robust.Shared.GameObjects;
-using Robust.Shared.Players;
-using Robust.Shared.Serialization.Manager.Attributes;
-using Robust.Shared.ViewVariables;
-
-namespace Content.Server.GameObjects.Components.Movement
-{
-    [RegisterComponent]
-    [ComponentReference(typeof(SharedSlipperyComponent))]
-    public class SlipperyComponent : SharedSlipperyComponent
-    {
-        /// <summary>
-        ///     Path to the sound to be played when a mob slips.
-        /// </summary>
-        [ViewVariables]
-        [DataField("slipSound")]
-        public string SlipSound { get; set; } = "/Audio/Effects/slip.ogg";
-
-        protected override void OnSlip()
-        {
-            if (!string.IsNullOrEmpty(SlipSound))
-            {
-                EntitySystem.Get<AudioSystem>()
-                    .PlayFromEntity(SlipSound, Owner, AudioHelpers.WithVariation(0.2f));
-            }
-        }
-
-        public override ComponentState GetComponentState(ICommonSession player)
-        {
-            return new SlipperyComponentState(ParalyzeTime, IntersectPercentage, RequiredSlipSpeed, LaunchForwardsMultiplier, Slippery);
-        }
-    }
-}