We want to skip the buffers in sync with playback, which
only makes progress once started. This means we can simplify
the logic to only apply the 30ms threashold when started
(which was indirectly the threashold used already because the
frame release would return TRY_AGAIN_LATER).
This means we can remove the
shouldSkipLateBuffersWhileUsingPlaceholderSurface as it was
only used in tests to prevent skipping while we were not
started.
PiperOrigin-RevId: 736533043
816d5cb86b