Revert "Implements support for ignoring method type arguments in resolution."

pkg/compiler/lib/src/serialization/resolved_ast_serialization.dart

Index: pkg/compiler/lib/src/serialization/resolved_ast_serialization.dart
diff --git a/pkg/compiler/lib/src/serialization/resolved_ast_serialization.dart b/pkg/compiler/lib/src/serialization/resolved_ast_serialization.dart
index 3ab9d9e1bc7b14c238c4e0e4d52708f26cb08c20..eb03860b64f1da8900cfd5baf660e12fb6769fba 100644
--- a/pkg/compiler/lib/src/serialization/resolved_ast_serialization.dart
+++ b/pkg/compiler/lib/src/serialization/resolved_ast_serialization.dart
@@ -425,7 +425,6 @@ class ResolvedAstDeserializer {
           FunctionExpression toStringNode = builder.functionExpression(
               Modifiers.EMPTY,
               'toString',
-              null,
               builder.argumentList([]),
               builder.returnStatement(builder.indexGet(
                   builder.mapLiteral(mapEntries, isConst: true),
@@ -438,7 +437,6 @@ class ResolvedAstDeserializer {
           FunctionExpression constructorNode = builder.functionExpression(
               builder.modifiers(isConst: true),
               element.enclosingClass.name,
-              null,
               builder.argumentList([indexDefinition]),
               builder.emptyStatement());
           return constructorNode;