Remove old or unused items from wpt/webaudio

Remove the old stale copy of the spec and remove js/lodash.js which
is loaded in several places but not actually used for anything.

Bug: 782901
Change-Id: Idfdbc9f1cf2d9edf190d649168074f4d4ec66c73
Reviewed-on: https://chromium-review.googlesource.com/759225Reviewed-by: Hongchan Choi <hongchan@chromium.org>
Commit-Queue: Raymond Toy <rtoy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#515256}

third_party/WebKit/LayoutTests/external/wpt/webaudio/the-audio-api/the-audiobuffer-interface/idl-test.html

@@ -6,7 +6,6 @@
 <script src="/resources/testharnessreport.js"></script>
 <script src="/resources/idlharness.js"></script>
 <script src="/resources/WebIDLParser.js"></script>
-<script src="/webaudio/js/lodash.js"></script>
 <script src="/webaudio/js/helpers.js"></script>
 <style type="text/css">
     #event-target-idl,

third_party/WebKit/LayoutTests/external/wpt/webaudio/the-audio-api/the-audiodestinationnode-interface/idl-test.html

@@ -6,7 +6,6 @@
 <script src="/resources/testharnessreport.js"></script>
 <script src="/resources/idlharness.js"></script>
 <script src="/resources/WebIDLParser.js"></script>
-<script src="/webaudio/js/lodash.js"></script>
 <script src="/webaudio/js/helpers.js"></script>
 <style type="text/css">
     #event-target-idl,

third_party/WebKit/LayoutTests/external/wpt/webaudio/the-audio-api/the-audioparam-interface/idl-test.html

@@ -6,7 +6,6 @@
 <script src="/resources/testharnessreport.js"></script>
 <script src="/resources/idlharness.js"></script>
 <script src="/resources/WebIDLParser.js"></script>
-<script src="/webaudio/js/lodash.js"></script>
 <script src="/webaudio/js/helpers.js"></script>
 <style type="text/css">
     #audio-param-idl

third_party/WebKit/LayoutTests/external/wpt/webaudio/the-audio-api/the-delaynode-interface/idl-test.html

@@ -6,7 +6,6 @@
 <script src="/resources/testharnessreport.js"></script>
 <script src="/resources/idlharness.js"></script>
 <script src="/resources/WebIDLParser.js"></script>
-<script src="/webaudio/js/lodash.js"></script>
 <script src="/webaudio/js/helpers.js"></script>
 <style type="text/css">
     #event-target-idl,

third_party/WebKit/LayoutTests/external/wpt/webaudio/the-audio-api/the-gainnode-interface/idl-test.html

@@ -6,7 +6,6 @@
 <script src="/resources/testharnessreport.js"></script>
 <script src="/resources/idlharness.js"></script>
 <script src="/resources/WebIDLParser.js"></script>
-<script src="/webaudio/js/lodash.js"></script>
 <script src="/webaudio/js/helpers.js"></script>
 <style type="text/css">
     #event-target-idl,

third_party/WebKit/LayoutTests/external/wpt/webaudio/the-audio-api/the-gainnode-interface/test-gainnode.html

@@ -14,7 +14,6 @@ Based on a test from the WebKit test suite
   <title>GainNode interface</title>
   <script src="/resources/testharness.js"></script>
   <script src="/resources/testharnessreport.js"></script>
-  <script src="/webaudio/js/lodash.js"></script>
   <script src="/webaudio/js/helpers.js"></script>
   <script src="/webaudio/js/buffer-loader.js"></script>
  </head>

third_party/WebKit/LayoutTests/external/wpt/webaudio/the-audio-api/the-mediaelementaudiosourcenode-interface/mediaElementAudioSourceToScriptProcessorTest.html

@@ -16,7 +16,6 @@ Somewhat similiar to a test from Mozilla:
   <title>MediaElementAudioSource interface test (to scriptProcessor)</title>
   <script src="/resources/testharness.js"></script>
   <script src="/resources/testharnessreport.js"></script>
-  <script src="/webaudio/js/lodash.js"></script>
   <script src="/webaudio/js/helpers.js"></script>
   <script src="/webaudio/js/buffer-loader.js"></script>
  </head>