Start pulling pub from its own repo.

sdk/lib/_internal/pub/lib/src/validator/utf8_readme.dart

Index: sdk/lib/_internal/pub/lib/src/validator/utf8_readme.dart
diff --git a/sdk/lib/_internal/pub/lib/src/validator/utf8_readme.dart b/sdk/lib/_internal/pub/lib/src/validator/utf8_readme.dart
deleted file mode 100644
index 9f30d65599d7668fecd5c13806edeb3d5c30742e..0000000000000000000000000000000000000000
--- a/sdk/lib/_internal/pub/lib/src/validator/utf8_readme.dart
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2013, 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.
-
-library pub.validator.utf8_readme;
-
-import 'dart:async';
-import 'dart:convert';
-
-import '../entrypoint.dart';
-import '../io.dart';
-import '../validator.dart';
-
-/// Validates that a package's README is valid utf-8.
-class Utf8ReadmeValidator extends Validator {
-  Utf8ReadmeValidator(Entrypoint entrypoint)
-    : super(entrypoint);
-
-  Future validate() {
-    return new Future.sync(() {
-      var readme = entrypoint.root.readmePath;
-      if (readme == null) return;
-      var bytes = readBinaryFile(readme);
-      try {
-        // UTF8.decode doesn't allow invalid UTF-8.
-        UTF8.decode(bytes);
-      } on FormatException catch (_) {
-        warnings.add("$readme contains invalid UTF-8.\n"
-            "This will cause it to be displayed incorrectly on "
-                "pub.dartlang.org.");
-      }
-    });
-  }
-}
-