Pepper: Remove unused interface versions.

ppapi/api/dev/ppb_audio_input_dev.idl

Index: ppapi/api/dev/ppb_audio_input_dev.idl
diff --git a/ppapi/api/dev/ppb_audio_input_dev.idl b/ppapi/api/dev/ppb_audio_input_dev.idl
index fe960253898dc4ebeab30e3601049e8872bd88ea..71ce6eb7525ffd7f6788d4d1d5b5cdde681d62b3 100644
--- a/ppapi/api/dev/ppb_audio_input_dev.idl
+++ b/ppapi/api/dev/ppb_audio_input_dev.idl
@@ -9,7 +9,6 @@
  */
 
 label Chrome {
-  M19 = 0.2,
   M25 = 0.3,
   M30 = 0.4
 };
@@ -75,33 +74,6 @@ interface PPB_AudioInput_Dev {
   /**
    * Enumerates audio input devices.
    *
-   * Please note that:
-   * - this method ignores the previous value pointed to by <code>devices</code>
-   *   (won't release reference even if it is not 0);
-   * - <code>devices</code> must be valid until <code>callback</code> is called,
-   *   if the method returns <code>PP_OK_COMPLETIONPENDING</code>;
-   * - the ref count of the returned <code>devices</code> has already been
-   *   increased by 1 for the caller.
-   *
-   * @param[in] audio_input A <code>PP_Resource</code> corresponding to an audio
-   * input resource.
-   * @param[out] devices Once the operation is completed successfully,
-   * <code>devices</code> will be set to a <code>PPB_ResourceArray_Dev</code>
-   * resource, which holds a list of <code>PPB_DeviceRef_Dev</code> resources.
-   * @param[in] callback A <code>PP_CompletionCallback</code> to run on
-   * completion.
-   *
-   * @return An error code from <code>pp_errors.h</code>.
-   */
-  [deprecate=0.3]
-  int32_t EnumerateDevices(
-      [in] PP_Resource audio_input,
-      [out] PP_Resource devices,
-      [in] PP_CompletionCallback callback);
-
-  /**
-   * Enumerates audio input devices.
-   *
    * @param[in] audio_input A <code>PP_Resource</code> corresponding to an audio
    * input resource.
    * @param[in] output An output array which will receive