Remove generated directories with 100s of files.

client/dom/generated/src/interface/AudioContext.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.
-
-// WARNING: Do not edit - generated code.
-
-interface AudioContext default _AudioContextFactoryProvider {
-
-  AudioContext();
-
-  final num currentTime;
-
-  final AudioDestinationNode destination;
-
-  final AudioListener listener;
-
-  EventListener oncomplete;
-
-  final num sampleRate;
-
-  RealtimeAnalyserNode createAnalyser();
-
-  BiquadFilterNode createBiquadFilter();
-
-  AudioBuffer createBuffer(var buffer_OR_numberOfChannels, var mixToMono_OR_numberOfFrames, [num sampleRate]);
-
-  AudioBufferSourceNode createBufferSource();
-
-  AudioChannelMerger createChannelMerger();
-
-  AudioChannelSplitter createChannelSplitter();
-
-  ConvolverNode createConvolver();
-
-  DelayNode createDelayNode([num maxDelayTime]);
-
-  DynamicsCompressorNode createDynamicsCompressor();
-
-  AudioGainNode createGainNode();
-
-  HighPass2FilterNode createHighPass2Filter();
-
-  JavaScriptAudioNode createJavaScriptNode(int bufferSize);
-
-  LowPass2FilterNode createLowPass2Filter();
-
-  MediaElementAudioSourceNode createMediaElementSource(HTMLMediaElement mediaElement);
-
-  AudioPannerNode createPanner();
-
-  WaveShaperNode createWaveShaper();
-
-  void decodeAudioData(ArrayBuffer audioData, AudioBufferCallback successCallback, [AudioBufferCallback errorCallback]);
-
-  void startRendering();
-}