Get rid of a lot of () for getters.

lib/crypto/crypto.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.
 
 #library('dart:crypto');
 
 #import('dart:math');
 
 #source('crypto_utils.dart');
 #source('hash_utils.dart');
@@ skipping 28 matching lines @@
   List<int> digest();
 
   /**
    * Returns a new instance of this hash function.
    */
   Hash newInstance();
 
   /**
    * Block size of the hash in bytes.
    */
-  int get blockSize();
+  int get blockSize;
 }
 
 /**
  * SHA1 hash function implementation.
  */
 interface SHA1 extends Hash default _SHA1 {
   SHA1();
 }
 
 /**
@@ skipping 62 matching lines @@
 /**
  * HashExceptions are thrown on invalid use of a Hash
  * object.
  */
 class HashException {
   HashException(String this.message);
   toString() => "HashException: $message";
   String message;
 }