Add a couple of lints to the options files

pkg/analysis_server/tool/instrumentation/page/stats_page.dart

 // Copyright (c) 2016, 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 '../log/log.dart';
 import 'page_writer.dart';
 
 /**
  * A page writer that will produce the page containing statistics about an
  * instrumentation log.
@@ skipping 240 matching lines @@
           sink.write('<tr><td class="int">');
           sink.write(responseTimes[0]);
           sink.write('</td><td class="int">');
           sink.write(_mean(responseTimes));
           sink.write('</td><td class="int">');
           sink.write(responseTimes[responseTimes.length - 1]);
           sink.write('</td><td>');
           sink.write(method);
           sink.writeln('</td></tr>');
         }
-        ;
         sink.writeln('</table>');
       });
     }
   }
 }