Remove deprecated APIs.

lib/src/sha1.dart

 // Copyright (c) 2012, 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 'dart:convert';
 import 'dart:typed_data';
 
 import 'digest.dart';
 import 'hash.dart';
 import 'hash_sink.dart';
 import 'utils.dart';
 
 /// An instance of [Sha1].
 ///
 /// This instance provides convenient access to the [SHA-1][rfc] hash function.
 ///
 /// [rfc]: http://tools.ietf.org/html/rfc3174
 final sha1 = new Sha1._();
 
 /// An implementation of the [SHA-1][rfc] hash function.
 ///
 /// [rfc]: http://tools.ietf.org/html/rfc3174
 class Sha1 extends Hash {
   final int blockSize = 16 * bytesPerWord;
 
   Sha1._();
 
-  Sha1 newInstance() => new Sha1._();
-
   ByteConversionSink startChunkedConversion(Sink<Digest> sink) =>
       new ByteConversionSink.from(new _Sha1Sink(sink));
 }
 
-/// This class is deprecated.
-///
-/// Use [sha1] instead.
-@Deprecated("Will be removed in crypto 1.0.0.")
-class SHA1 extends Sha1 {
-  SHA1() : super._();
-
-  SHA1 newInstance() => new SHA1();
-}
-
 /// The concrete implementation of [Sha1].
 ///
 /// This is separate so that it can extend [HashBase] without leaking additional
 /// public memebers.
 class _Sha1Sink extends HashSink {
   final digest = new Uint32List(5);
 
   /// The sixteen words from the original chunk, extended to 80 words.
   ///
   /// This is an instance variable to avoid re-allocating, but its data isn't
@@ skipping 47 matching lines @@
       a = newA & mask32;
     }
 
     digest[0] = add32(a, digest[0]);
     digest[1] = add32(b, digest[1]);
     digest[2] = add32(c, digest[2]);
     digest[3] = add32(d, digest[3]);
     digest[4] = add32(e, digest[4]);
   }
 }