ALSA: i2c: tea6330t: Remove redundant initialization of variable err

The variable err is being initialized with a value that is never read,
it is being updated later on. The assignment is redundant and can be
removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20210611165223.38983-1-colin.king@canonical.com


Signed-off-by: Takashi Iwai <tiwai@suse.de>