Removed final internal

Author: papafe

src/MongoDB.Bson/Serialization/Conventions/IConventionRegistryDomain.cs

@@ -2,10 +2,7 @@
 
 namespace MongoDB.Bson.Serialization.Conventions
 {
-    /// <summary>
-    /// //TODO
-    /// </summary>
-    public interface IConventionRegistryDomain
+    internal interface IConventionRegistryDomain
     {
         /// <summary>
         /// //TODO

src/MongoDB.Bson/Serialization/IBsonClassMapDomain.cs

@@ -19,10 +19,7 @@
 
 namespace MongoDB.Bson.Serialization
 {
-    /// <summary>
-    /// //TODO
-    /// </summary>
-    public interface IBsonClassMapDomain
+    internal interface IBsonClassMapDomain
     {
         /// <summary>
         /// Gets all registered class maps.

src/MongoDB.Bson/Serialization/Serializers/ExpandoObjectSerializer.cs

@@ -43,7 +43,7 @@ public ExpandoObjectSerializer()
         /// //TODO
         /// </summary>
         /// <param name="serializerRegistry"></param>
-        public ExpandoObjectSerializer(IBsonSerializerRegistry serializerRegistry)
+        internal ExpandoObjectSerializer(IBsonSerializerRegistry serializerRegistry)
         {
             _listSerializer = serializerRegistry.GetSerializer<List<object>>();
         }