StorageQuota should not be exposed. Remove tests

tests/html/storage_quota_test.dart

Index: tests/html/storage_quota_test.dart
diff --git a/tests/html/storage_quota_test.dart b/tests/html/storage_quota_test.dart
deleted file mode 100644
index 54e53464d71101c8a892b9ade5b36076d441bc41..0000000000000000000000000000000000000000
--- a/tests/html/storage_quota_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-library storage_quota_test;
-
-import 'package:unittest/unittest.dart';
-import 'package:unittest/html_config.dart';
-
-import 'dart:async';
-import 'dart:isolate';
-import 'dart:html';
-
-main() {
-  useHtmlConfiguration();
-
-  expectSaneStorageInfo(StorageInfo storageInfo) {
-     expect(storageInfo.usage, isNotNull);
-     expect(storageInfo.quota, isNotNull);
-     expect(storageInfo.usage >= 0, isTrue);
-     expect(storageInfo.quota >= storageInfo.usage, isNotNull);
-  };
-
-  test('storage quota - temporary', () {
-    Future f = window.navigator.storageQuota.queryInfo('temporary');
-    expect(f.then(expectSaneStorageInfo), completes);
-  });
-
-  test('storage quota - persistent', () {
-    Future f = window.navigator.storageQuota.queryInfo('persistent');
-    expect(f.then(expectSaneStorageInfo), completes);
-  });
-
-  test('storage quota - unknown', () {
-    // Throwing synchronously is bogus upstream behavior; should result in a
-    // smashed promise.
-    expect(() => window.navigator.storageQuota.queryInfo("foo"), throws);  /// missingenumcheck: ok
-    var wrongType = 3;
-    expect(() => window.navigator.storageQuota.queryInfo(wrongType), throws);
-    expect(() => window.navigator.storageQuota.queryInfo(null), throws);
-  });
-}