Removed Polymer from Observatory deps

packages/polymer_expressions/benchmark/parse.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.
-
-library polymer_expressions.benchmark.parse;
-
-import 'package:benchmark_harness/benchmark_harness.dart';
-import 'package:polymer_expressions/parser.dart' show parse;
-
-/**
- * Measures pure parsing time of several expressions
- */
-class PolymerParseBenchmark extends BenchmarkBase {
-  PolymerParseBenchmark() : super('PolymerParseBenchmark');
-
-  run() {
-    parse('foo.bar.baz');
-    parse('f()');
-    parse('(1 + 2) * 3');
-    parse('1 + 2.0 + false + "abcdefg" + {"a": 1}');
-    parse('(a * (b * (c * (d * (e)))))');
-    parse('a(b(c(d(e(f)))))');
-  }
-}
-
-main() {
-  new PolymerParseBenchmark().report();
-}