Remove unused variable mt8183_mt6358_ts3a227_max98357_dapm_widgets and
mt8183_mt6358_ts3a227_max98357_dapm_routes.  They are accidentially
included when rebasing commits.

Fixes: 6191cbde ("ASoC: mediatek: mt8183: switch tdm pins gpio function when playback on or off")
Signed-off-by: Tzung-Bi Shih <tzungbi@google.com>
Link: https://lore.kernel.org/r/20190826032642.27324-1-tzungbi@google.comSigned-off-by: Mark Brown <broonie@kernel.org>