ASoC: soc-component: Remove non_legacy_dai_naming flag

Now all the users are moved over to the new legacy_dai_naming flag,
remove the now unused old flag.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220623125250.2355471-97-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>