ASoC: mchp-spdiftx: remove references to mchp_i2s_caps

stable inclusion
from stable-v5.10.143
commit 9dacdc1d47eda4b0f511b5e5f1a554bc21a0af62
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I6D0U6

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=9dacdc1d47eda4b0f511b5e5f1a554bc21a0af62



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commit 403fcb51 upstream.

Remove references to struct mchp_i2s_caps as they are not used.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20220727090814.2446111-3-claudiu.beznea@microchip.com


Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com>
Reviewed-by: Zheng Zengkai <zhengzengkai@huawei.com>