Removing unreleased Audio Offload changes from git

RELEASENOTES.md

@@ -20,24 +20,6 @@ This release includes the following changes since
 *   Audio:
     *   Add direct playback support for DTS Express and DTS:X
         ([#335](https://github.com/androidx/media/pull/335)).
-*   Audio Offload:
-    *   Add `AudioSink.getFormatOffloadSupport(Format)` that retrieves level of
-        offload support the sink can provide for the format through a
-        `DefaultAudioOffloadSupportProvider`. It returns the new
-        `AudioOffloadSupport` that contains `isFormatSupported`,
-        `isGaplessSupported`, and `isSpeedChangeSupported`.
-    *   Add `AudioSink.setOffloadMode()` through which the offload configuration
-        on the audio sink is configured. Default is
-        `AudioSink.OFFLOAD_MODE_DISABLED`.
-    *   Offload can be enabled through `setAudioOffloadPreference` in
-        `TrackSelectionParameters`. If the set preference is to enable, the
-        device supports offload for the format, and the track selection is a
-        single audio track, then audio offload will be enabled.
-    *   Remove parameter `enableOffload` from
-        `DefaultRenderersFactory.buildAudioSink` method signature.
-    *   Remove method `DefaultAudioSink.Builder.setOffloadMode`.
-    *   Remove intdef value
-        `DefaultAudioSink.OffloadMode.OFFLOAD_MODE_ENABLED_GAPLESS_DISABLED`.
 *   Video:
     *   Make `MediaCodecVideoRenderer` report a `VideoSize` with a width and
         height of 0 when the renderer is disabled.