ASoC: rt1015: fix i2c communication error

Remove 0x100 cache re-sync to solve i2c communication error.

Signed-off-by: Jack Yu <jack.yu@realtek.com>
Link: https://lore.kernel.org/r/20210222090057.29532-1-jack.yu@realtek.com


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