Removed unused and fixed comments

Author: papafe

src/MongoDB.Bson/BsonDefaults.cs

@@ -42,7 +42,7 @@ public static IBsonSerializer DynamicArraySerializer
             {
                 if (!__dynamicArraySerializerWasSet)
                 {
-                    __dynamicArraySerializer = BsonSerializer.LookupSerializer<List<object>>();  //TODO ??
+                    __dynamicArraySerializer = BsonSerializer.LookupSerializer<List<object>>();  //TODO Should we change this? Maybe all the classes that are using this should use the local domain if this is not set
                 }
                 return __dynamicArraySerializer;
             }

src/MongoDB.Bson/BsonExtensionMethods.cs

@@ -68,7 +68,7 @@ public static byte[] ToBson(
             BsonBinaryWriterSettings writerSettings = null,
             IBsonSerializer serializer = null,
             Action<BsonSerializationContext.Builder> configurator = null,
-            BsonSerializationArgs args = default(BsonSerializationArgs),
+            BsonSerializationArgs args = default,
             int estimatedBsonSize = 0) => ToBson(obj, nominalType, BsonSerializer.DefaultSerializationDomain, writerSettings,
             serializer, configurator, args, estimatedBsonSize);
 
@@ -163,7 +163,7 @@ public static BsonDocument ToBsonDocument(
             Type nominalType,
             IBsonSerializer serializer = null,
             Action<BsonSerializationContext.Builder> configurator = null,
-            BsonSerializationArgs args = default(BsonSerializationArgs)) => ToBsonDocument(obj, nominalType,
+            BsonSerializationArgs args = default) => ToBsonDocument(obj, nominalType,
             BsonSerializer.DefaultSerializationDomain, serializer, configurator, args);
 
         /// <summary>
@@ -184,7 +184,7 @@ public static BsonDocument ToBsonDocument(
             IBsonSerializationDomain domain,
             IBsonSerializer serializer = null,
             Action<BsonSerializationContext.Builder> configurator = null,
-            BsonSerializationArgs args = default(BsonSerializationArgs))
+            BsonSerializationArgs args = default)
         {
             if (nominalType == null)
             {
@@ -211,7 +211,7 @@ public static BsonDocument ToBsonDocument(
                     return convertibleToBsonDocument.ToBsonDocument(); // use the provided ToBsonDocument method
                 }
 
-                serializer = domain.LookupSerializer(nominalType);  //TODO ??
+                serializer = domain.LookupSerializer(nominalType);
             }
             if (serializer.ValueType != nominalType)
             {
@@ -272,7 +272,7 @@ public static string ToJson(
             JsonWriterSettings writerSettings = null,
             IBsonSerializer serializer = null,
             Action<BsonSerializationContext.Builder> configurator = null,
-            BsonSerializationArgs args = default(BsonSerializationArgs))
+            BsonSerializationArgs args = default)
             => ToJson(obj, nominalType, BsonSerializer.DefaultSerializationDomain, writerSettings, serializer, configurator, args);
 
         /// <summary>

src/MongoDB.Driver/Linq/Linq3Implementation/Translators/ExpressionToAggregationExpressionTranslators/MemberInitExpressionToAggregationExpressionTranslator.cs

@@ -47,7 +47,7 @@ public static AggregationExpression Translate(
             var constructorInfo = newExpression.Constructor; // note: can be null when using the default constructor with a struct
             var constructorArguments = newExpression.Arguments;
             var computedFields = new List<AstComputedField>();
-            var classMap = CreateClassMap(context, newExpression.Type, constructorInfo, out var creatorMap);
+            var classMap = CreateClassMap(newExpression.Type, constructorInfo, out var creatorMap);
 
             if (constructorInfo != null && creatorMap != null)
             {
@@ -100,12 +100,12 @@ public static AggregationExpression Translate(
             return new AggregationExpression(expression, ast, serializer);
         }
 
-        private static BsonClassMap CreateClassMap(TranslationContext context, Type classType, ConstructorInfo constructorInfo, out BsonCreatorMap creatorMap)
+        private static BsonClassMap CreateClassMap(Type classType, ConstructorInfo constructorInfo, out BsonCreatorMap creatorMap)
         {
             BsonClassMap baseClassMap = null;
             if (classType.BaseType != null)
             {
-                baseClassMap = CreateClassMap(context, classType.BaseType, null, out _);
+                baseClassMap = CreateClassMap(classType.BaseType, null, out _);
             }
 
             var classMapType = typeof(BsonClassMap<>).MakeGenericType(classType);

tests/MongoDB.Driver.Tests/MultipleRegistriesTests.cs

@@ -47,7 +47,6 @@ public void TestSerialization()
             }
 
             //The first section demonstrates that the class maps are also separated
-
             {
                 var customDomain = BsonSerializer.CreateSerializationDomain();
                 customDomain.RegisterSerializer(new CustomStringSerializer());