Remove outdated access reader method. (#19765)

Content.Shared/Access/Components/AccessReaderComponent.cs

@@ -26,25 +26,30 @@ public sealed partial class AccessReaderComponent : Component
     public HashSet<string> DenyTags = new();
 
     /// <summary>
-    ///     List of access lists to check allowed against. For an access check to pass
-    ///     there has to be an access list that is a subset of the access in the checking list.
+    /// List of access groups that grant access to this reader. Only a single matching group is required to gain access.
+    /// A group matches if it is a subset of the set being checked against.
     /// </summary>
     [DataField("access")]
     public List<HashSet<string>> AccessLists = new();
 
     /// <summary>
-    /// A list of valid stationrecordkeys
+    /// A list of <see cref="StationRecordKey"/>s that grant access. Only a single matching key is required tp gaim
+    /// access.
     /// </summary>
     [DataField("accessKeys")]
     public HashSet<StationRecordKey> AccessKeys = new();
 
-
     /// <summary>
-    ///     The name of the container in which additional
-    ///     AccessReaderComponents may be found.
+    /// If specified, then this access reader will instead pull access requirements from entities contained in the
+    /// given container.
     /// </summary>
+    /// <remarks>
+    /// This effectively causes <see cref="DenyTags"/>, <see cref="AccessLists"/>, and <see cref="AccessKeys"/> to be
+    /// ignored, though <see cref="Enabled"/> is still respected. Access is denied if there are no valid entities or
+    /// they all deny access.
+    /// </remarks>
     [DataField("containerAccessProvider")]
-    public string? ContainerAccessProvider = null;
+    public string? ContainerAccessProvider;
 }
 
 [Serializable, NetSerializable]