Revert "Add fast-mode Uri class."

tests/corelib/data_uri_test.dart

 // Copyright (c) 2015, 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:expect/expect.dart";
 import "dart:convert";
 import "dart:typed_data";
 
 main() {
   testMediaType();
 
   testRoundTrip("");
   testRoundTrip("a");
   testRoundTrip("ab");
   testRoundTrip("abc");
   testRoundTrip("abcd");
   testRoundTrip("Content with special%25 characters: # ? = % # ? = %");
   testRoundTrip("blåbærgrød", UTF8);
   testRoundTrip("blåbærgrød", LATIN1);
 
-  testUriEquals("data:,abc?d#e");
-  testUriEquals("DATA:,ABC?D#E");
-  testUriEquals("data:,a%20bc?d#e");
-  testUriEquals("DATA:,A%20BC?D#E");
-  testUriEquals("data:,a%62c?d#e");
-  testUriEquals("DATA:,A%42C?D#E");
-
   testUtf8Encoding("\u1000\uffff");
   testBytes();
   testInvalidCharacters();
   testErrors();
 }
 
 void testMediaType() {
   for (var mimeType in ["", "text/plain", "text/javascript"]) {
     for (var charset in ["", ";charset=US-ASCII", ";charset=UTF-8"]) {
       for (var base64 in ["", ";base64"]) {
@@ skipping 212 matching lines @@
   Expect.equals(expect.userInfo, actual.userInfo, "userInfo");
   Expect.equals(expect.host, actual.host, "host");
   Expect.equals(expect.hasPort, actual.hasPort, "hasPort");
   Expect.equals(expect.port, actual.port, "port");
   Expect.equals(expect.port, actual.port, "port");
   Expect.equals(expect.hasQuery, actual.hasQuery, "hasQuery");
   Expect.equals(expect.query, actual.query, "query");
   Expect.equals(expect.hasFragment, actual.hasFragment, "hasFragment");
   Expect.equals(expect.fragment, actual.fragment, "fragment");
 }
-
-void testUriEquals(String uriText) {
-  var data = UriData.parse(uriText);
-  var uri = Uri.parse(uriText);
-  Expect.equals(data.uri, uri);
-  Expect.equals(data.toString(), uri.data.toString());
-  Expect.equals(data.toString(), uri.toString());
-}