Move remqueue to engine (#4700)

Content.Server/Voting/Managers/VoteManager.cs

@@ -9,7 +9,6 @@ using Content.Server.Administration.Managers;
 using Content.Server.Afk;
 using Content.Server.Chat.Managers;
 using Content.Shared.Administration;
-using Content.Shared.Collections;
 using Content.Shared.Voting;
 using Robust.Server.Player;
 using Robust.Shared.Configuration;

Content.Shared/Collections/RemList.cs

@@ -1,75 +0,0 @@
-using System;
-using System.Collections;
-using System.Collections.Generic;
-
-
-namespace Content.Shared.Collections
-{
-    // It's a Remie Queue now.
-
-    /// <summary>
-    ///     Simple helper struct for "iterate collection and have a queue of things to remove when you're done",
-    ///     to avoid concurrent iteration/modification.
-    /// </summary>
-    public struct RemQueue<T>
-    {
-        public List<T>? List;
-
-        public void Add(T t)
-        {
-            List ??= new();
-            List.Add(t);
-        }
-
-        public Enumerator GetEnumerator()
-        {
-            return new(List);
-        }
-
-        public struct Enumerator : IEnumerator<T>
-        {
-            private readonly bool _filled;
-            private List<T>.Enumerator _enumerator;
-
-            public Enumerator(List<T>? list)
-            {
-                if (list == null)
-                {
-                    _filled = false;
-                    _enumerator = default;
-                }
-                else
-                {
-                    _filled = true;
-                    _enumerator = list.GetEnumerator();
-                }
-            }
-
-            public bool MoveNext()
-            {
-                if (!_filled)
-                {
-                    return false;
-                }
-
-                return _enumerator.MoveNext();
-            }
-
-            void IEnumerator.Reset()
-            {
-                if (_filled)
-                {
-                    ((IEnumerator) _enumerator).Reset();
-                }
-            }
-
-            public T Current => _enumerator.Current;
-
-            object? IEnumerator.Current => Current;
-
-            void IDisposable.Dispose()
-            {
-            }
-        }
-    }
-}

Content.Shared/Throwing/ThrownItemSystem.cs

@@ -1,7 +1,6 @@
 using System.Collections.Generic;
 using System.Linq;
 using Content.Shared.CCVar;
-using Content.Shared.Collections;
 using Content.Shared.Hands.Components;
 using Content.Shared.Physics;
 using Content.Shared.Physics.Pull;