Revert of Enable the optional permission prompt persistence toggle on grouped infobars

chrome/browser/media/webrtc/media_stream_infobar_delegate_android.h

 // 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.
 
 #ifndef CHROME_BROWSER_MEDIA_WEBRTC_MEDIA_STREAM_INFOBAR_DELEGATE_ANDROID_H_
 #define CHROME_BROWSER_MEDIA_WEBRTC_MEDIA_STREAM_INFOBAR_DELEGATE_ANDROID_H_
 
 #include <string>
 
 #include "base/compiler_specific.h"
@@ skipping 17 matching lines @@
   // was created.
   static bool Create(content::WebContents* web_contents,
                      std::unique_ptr<MediaStreamDevicesController> controller);
 
  private:
   friend class WebRtcTestBase;
 
   explicit MediaStreamInfoBarDelegateAndroid(
       std::unique_ptr<MediaStreamDevicesController> controller);
 
-  void RecordPermissionAcceptedUma(int position, bool persist);
-  void RecordPermissionDeniedUma(int position, bool persist);
-
   // ConfirmInfoBarDelegate:
   infobars::InfoBarDelegate::InfoBarIdentifier GetIdentifier() const override;
   void InfoBarDismissed() override;
   MediaStreamInfoBarDelegateAndroid* AsMediaStreamInfoBarDelegateAndroid()
       override;
   bool Accept() override;
   bool Cancel() override;
 
   std::unique_ptr<MediaStreamDevicesController> controller_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaStreamInfoBarDelegateAndroid);
 };
 
 #endif  // CHROME_BROWSER_MEDIA_WEBRTC_MEDIA_STREAM_INFOBAR_DELEGATE_ANDROID_H_