ASoC: Intel: avs-max98357a: remove redundant dapm routes

The route "HiFi Playback<-sspX Tx" is created by
snd_soc_dapm_connect_dai_link_widgets() automatically. Remove the
duplicate routes.

Signed-off-by: Brent Lu <brent.lu@intel.com>
Link: https://lore.kernel.org/r/20230612110958.592674-5-brent.lu@intel.com


Signed-off-by: Mark Brown <broonie@kernel.org>