fix: Removes PoolOfAcid (#1310)

## BREAKING CHANGES
You will receive a deserialization error saying cannot find type PoolOfAcid. This is ok, just hit yes to delete all.

Projects/UOContent/Items/Misc/PoolOfAcid.cs

@@ -1,97 +0,0 @@
-using System;
-using Server.Collections;
-using Server.Mobiles;
-
-namespace Server.Items;
-
-[ManualDirtyChecking]
-[TypeAlias("Server.Items.AcidSlime")]
-public class PoolOfAcid : Item
-{
-    private readonly TimeSpan _duration;
-    private readonly int _maxDamage;
-    private readonly int _minDamage;
-    private TimerExecutionToken _timerToken;
-    private bool _drying;
-
-    [Constructible]
-    public PoolOfAcid() : this(TimeSpan.FromSeconds(10.0), 2, 5)
-    {
-    }
-
-    [Constructible]
-    public PoolOfAcid(TimeSpan duration, int minDamage, int maxDamage) : base(0x122A)
-    {
-        Hue = 0x3F;
-        Movable = false;
-
-        _minDamage = minDamage;
-        _maxDamage = maxDamage;
-        _duration = duration;
-
-        Timer.StartTimer(TimeSpan.Zero, TimeSpan.FromSeconds(1), OnTick, out _timerToken);
-    }
-
-    public PoolOfAcid(Serial serial) : base(serial)
-    {
-    }
-
-    public override string DefaultName => "a pool of acid";
-
-    public override void OnDelete()
-    {
-        _timerToken.Cancel();
-    }
-
-    private void OnTick()
-    {
-        var now = Core.Now;
-        var age = now - Created;
-
-        if (age > _duration)
-        {
-            Delete();
-            return;
-        }
-
-        if (!_drying && age > _duration - age)
-        {
-            _drying = true;
-            ItemID = 0x122B;
-        }
-
-        using var queue = PooledRefQueue<Mobile>.Create();
-
-        foreach (var m in GetMobilesInRange(0))
-        {
-            if (m.Alive && !m.IsDeadBondedPet && (m is not BaseCreature bc || bc.Controlled || bc.Summoned))
-            {
-                queue.Enqueue(m);
-            }
-        }
-
-        while (queue.Count > 0)
-        {
-            Damage(queue.Dequeue());
-        }
-    }
-
-    public override bool OnMoveOver(Mobile m)
-    {
-        Damage(m);
-        return true;
-    }
-
-    public void Damage(Mobile m)
-    {
-        m.Damage(Utility.RandomMinMax(_minDamage, _maxDamage));
-    }
-
-    public override void Serialize(IGenericWriter writer)
-    {
-    }
-
-    public override void Deserialize(IGenericReader reader)
-    {
-    }
-}