Remove debug print from previous commit.

sdk/lib/io/http_headers.dart

 // Copyright (c) 2013, 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.
 
 part of dart.io;
 
 class _HttpHeaders implements HttpHeaders {
   _HttpHeaders(String this.protocolVersion)
       : _headers = new Map<String, List<String>>();
 
@@ skipping 553 matching lines @@
         }
         return s.substring(start, index).toLowerCase();
       }
 
       String parseParameterValue() {
         if (s[index] == "\"") {
           // Parse quoted value.
           StringBuffer sb = new StringBuffer();
           index++;
           while (!done()) {
-            print(s[index]);
             if (s[index] == "\\") {
               if (index + 1 == s.length) {
                 throw new HttpException("Failed to parse header value");
               }
               if (preserveBackslash && s[index + 1] != "\"") {
                 sb.write(s[index]);
               }
               index++;
             } else if (s[index] == "\"") {
               index++;
@@ skipping 238 matching lines @@
   void clear() {
     throw new UnsupportedError("Cannot modify an unmodifiable map");
   }
   void forEach(void f(K key, V value)) => _map.forEach(f);
   Iterable<K> get keys => _map.keys;
   Iterable<V> get values => _map.values;
   int get length => _map.length;
   bool get isEmpty => _map.isEmpty;
   bool get isNotEmpty => _map.isNotEmpty;
 }