ASoC: soc-core: remove redundant assignment to variable ret

The variable ret is being assigned a zero value that is never read,
it is being re-assigned a new value from the return value from the
call to snd_soc_dapm_add_routes. The assignment is redundant and can
be removed.

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://patch.msgid.link/20241217171151.354550-1-colin.i.king@gmail.com


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