ASoC: soc-core: remove unneeded list_empty() check for snd_soc_try_rebind_card()

list_for_each_entry_safe() will do nothing if it was empty list.
This patch removes unneeded list_empty() check for
list_for_each_entry_safe().

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/878ss5aho6.wl-kuninori.morimoto.gx@renesas.com


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