chore: remove obsolete files (#10240)

modules/@angular/compiler/src/assertions.dart

@@ -1,3 +0,0 @@
-library angular2.core.util.asserions;
-
-void assertArrayOfStrings(String identifier, Object value) {}

modules/@angular/compiler/src/url_resolver.dart

@@ -1,69 +0,0 @@
-library angular2.src.services.url_resolver;
-
-import 'package:angular2/src/core/di.dart' show Injectable, Inject, Provider;
-import 'package:angular2/src/facade/lang.dart' show isPresent, StringWrapper;
-import 'package:angular2/src/core/application_tokens.dart' show PACKAGE_ROOT_URL;
-
-const _ASSET_SCHEME = 'asset:';
-
-UrlResolver createUrlResolverWithoutPackagePrefix() {
-  return new UrlResolver.withUrlPrefix(null);
-}
-
-UrlResolver createOfflineCompileUrlResolver() {
-  return new UrlResolver.withUrlPrefix(_ASSET_SCHEME);
-}
-
-const DEFAULT_PACKAGE_URL_PROVIDER = const Provider(PACKAGE_ROOT_URL, useValue: "/packages");
-
-@Injectable()
-class UrlResolver {
-  /// This will be the location where 'package:' Urls will resolve. Default is
-  /// '/packages'
-  final String _packagePrefix;
-
-  UrlResolver([@Inject(PACKAGE_ROOT_URL) this._packagePrefix]);
-
-  /// Creates a UrlResolver that will resolve 'package:' Urls to a different
-  /// prefixed location.
-  const UrlResolver.withUrlPrefix(this._packagePrefix);
-
-  /**
-   * Resolves the `url` given the `baseUrl`:
-   * - when the `url` is null, the `baseUrl` is returned,
-   * - if `url` is relative ('path/to/here', './path/to/here'), the resolved url is a combination of
-   * `baseUrl` and `url`,
-   * - if `url` is absolute (it has a scheme: 'http://', 'https://' or start with '/'), the `url` is
-   * returned as is (ignoring the `baseUrl`)
-   *
-   * @param {string} baseUrl
-   * @param {string} url
-   * @returns {string} the resolved URL
-   */
-  String resolve(String baseUrl, String url) {
-    Uri uri = Uri.parse(url);
-
-    if (isPresent(baseUrl) && baseUrl.length > 0) {
-      Uri baseUri = Uri.parse(baseUrl);
-      uri = baseUri.resolveUri(uri);
-    }
-
-    var prefix = this._packagePrefix;
-    if (prefix != null && uri.scheme == 'package') {
-      if (prefix == _ASSET_SCHEME) {
-        var pathSegments = uri.pathSegments.toList()..insert(1, 'lib');
-        return new Uri(scheme: 'asset', pathSegments: pathSegments).toString();
-      } else {
-        prefix = StringWrapper.stripRight(prefix, '/');
-        var path = StringWrapper.stripLeft(uri.path, '/');
-        return '$prefix/$path';
-      }
-    } else {
-      return uri.toString();
-    }
-  }
-}
-
-String getUrlScheme(String url) {
-  return Uri.parse(url).scheme;
-}