Pepper: Remove unused interface versions.

ppapi/cpp/dev/audio_input_dev.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 PPAPI_CPP_DEV_AUDIO_INPUT_DEV_H_
 #define PPAPI_CPP_DEV_AUDIO_INPUT_DEV_H_
 
 #include <vector>
 
 #include "ppapi/c/dev/ppb_audio_input_dev.h"
@@ skipping 32 matching lines @@
   /// If |device_ref| is null (i.e., is_null() returns true), the default device
   /// will be used.
   ///
   /// Requires <code>PPB_AudioInput_Dev</code> version 0.4 or up.
   int32_t Open(const DeviceRef_Dev& device_ref,
                const AudioConfig& config,
                PPB_AudioInput_Callback audio_input_callback,
                void* user_data,
                const CompletionCallback& callback);
 
-  /// Requires <code>PPB_AudioInput_Dev</code> version 0.2 or 0.3.
+  /// Requires <code>PPB_AudioInput_Dev</code> version 0.3.
   int32_t Open(const DeviceRef_Dev& device_ref,
                const AudioConfig& config,
-               PPB_AudioInput_Callback_0_2 audio_input_callback_0_2,
+               PPB_AudioInput_Callback_0_3 audio_input_callback_0_3,
                void* user_data,
                const CompletionCallback& callback);
 
   bool StartCapture();
   bool StopCapture();
   void Close();
 };
 
 }  // namespace pp
 
 #endif  // PPAPI_CPP_DEV_AUDIO_INPUT_DEV_H_