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

sound/i2c/tea6330t.c

@@ -284,7 +284,7 @@ int snd_tea6330t_update_mixer(struct snd_card *card,
 	struct tea6330t *tea;
 	const struct snd_kcontrol_new *knew;
 	unsigned int idx;
-	int err = -ENOMEM;
+	int err;
 	u8 default_treble, default_bass;
 	unsigned char bytes[7];