diff --git a/loader.Dockerfile b/loader.Dockerfile
deleted file mode 100644
index e167d02..0000000
--- a/loader.Dockerfile
+++ /dev/null
@@ -1,150 +0,0 @@
-// Copyright (c) 2021, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'package:code_builder/code_builder.dart';
-import 'package:test/test.dart';
-
-import '../common.dart';
-
-void main() {
-  useDartfmt();
-
-  test('should create a mixin', () {
-    expect(
-      Mixin((b) => b..name = 'Foo'),
-      equalsDart(r'''
-        mixin Foo {}
-      '''),
-    );
-  });
-
-  test('should create a base mixin', () {
-    expect(
-      Mixin((b) => b
-        ..name = 'Foo'
-        ..base = true),
-      equalsDart(r'''
-        base mixin Foo {}
-      '''),
-    );
-  });
-
-  test('should create a mixin with documentations', () {
-    expect(
-      Mixin(
-        (b) => b
-          ..name = 'Foo'
-          ..docs.addAll(
-            const [
-              '/// My favorite mixin.',
-            ],
-          ),
-      ),
-      equalsDart(r'''
-        /// My favorite mixin.
-        mixin Foo {}
-      '''),
-    );
-  });
-
-  test('should create a mixin with annotations', () {
-    expect(
-      Mixin(
-        (b) => b
-          ..name = 'Foo'
-          ..annotations.addAll([
-            refer('deprecated'),
-            refer('Deprecated').call([literalString('This is an old mixin')])
-          ]),
-      ),
-      equalsDart(r'''
-        @deprecated
-        @Deprecated('This is an old mixin')
-        mixin Foo {}
-      '''),
-    );
-  });
-
-  test('should create a mixin with a generic type', () {
-    expect(
-      Mixin((b) => b
-        ..name = 'List'
-        ..types.add(refer('T'))),
-      equalsDart(r'''
-        mixin List<T> {}
-      '''),
-    );
-  });
-
-  test('should create a mixin with multiple generic types', () {
-    expect(
-      Mixin(
-        (b) => b
-          ..name = 'Map'
-          ..types.addAll([
-            refer('K'),
-            refer('V'),
-          ]),
-      ),
-      equalsDart(r'''
-        mixin Map<K, V> {}
-      '''),
-    );
-  });
-
-  test('should create a mixin with a bound generic type', () {
-    expect(
-      Mixin((b) => b
-        ..name = 'Comparable'
-        ..types.add(TypeReference((b) => b
-          ..symbol = 'T'
-          ..bound = TypeReference((b) => b
-            ..symbol = 'Comparable'
-            ..types.add(refer('T').type))))),
-      equalsDart(r'''
-        mixin Comparable<T extends Comparable<T>> {}
-      '''),
-    );
-  });
-
-  test('should create a mixin on another mixin', () {
-    expect(
-      Mixin((b) => b
-        ..name = 'Foo'
-        ..on = TypeReference((b) => b.symbol = 'Bar')),
-      equalsDart(r'''
-        mixin Foo on Bar {}
-      '''),
-    );
-  });
-
-  test('should create a mixin implementing another mixin', () {
-    expect(
-      Mixin((b) => b
-        ..name = 'Foo'
-        ..on = TypeReference((b) => b.symbol = 'Bar')
-        ..implements.add(TypeReference((b) => b.symbol = 'Foo'))),
-      equalsDart(r'''
-        mixin Foo on Bar implements Foo {}
-      '''),
-    );
-  });
-
-  test('should create a mixin with a method', () {
-    expect(
-      Mixin((b) => b
-        ..name = 'Foo'
-        ..methods.add(Method((b) => b
-          ..name = 'foo'
-          ..body = const Code('return 1+ 2;')))),
-      equalsDart(r'''
-        mixin Foo {
-          foo() {
-            return 1 + 2;
-          }
-        }
-      '''),
-    );
-  });
-}