[PATCH 12/13] ASoC: cs35l34: drop useless rate contraint

[Jerome Brunet <jbrunet@xxxxxxxxxxxx>]

The cs35l34 adds a useless rate constraint on startup.
It does not set SNDRV_PCM_RATE_KNOT and the rates set are already a subset
of the ones provided in the constraint list, so it is a no-op.