Reverted the code for the non-interactive audible tab notification

chrome/browser/android/chrome_web_contents_delegate_android.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/android/chrome_web_contents_delegate_android.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
 #include "base/command_line.h"
 #include "chrome/browser/android/feature_utilities.h"
@@ skipping 378 matching lines @@
 jboolean IsCapturingVideo(JNIEnv* env,
                           jclass clazz,
                           jobject java_web_contents) {
   content::WebContents* web_contents =
       content::WebContents::FromJavaWebContents(java_web_contents);
   scoped_refptr<MediaStreamCaptureIndicator> indicator =
       MediaCaptureDevicesDispatcher::GetInstance()->
           GetMediaStreamCaptureIndicator();
   return indicator->IsCapturingVideo(web_contents);
 }
-
-jboolean HasAudibleAudio(JNIEnv* env,
-                         jclass clazz,
-                         jobject java_web_contents) {
-  content::WebContents* web_contents =
-      content::WebContents::FromJavaWebContents(java_web_contents);
-  return web_contents->WasRecentlyAudible();
-}