[ALSA] sound/pci/hda/patch_realtek.c: remove dead code

This patch removes some dead code spotted by the Coverity checker.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

sound/pci/hda/patch_realtek.c

@@ -11182,8 +11182,6 @@ static int alc662_parse_auto_config(struct hda_codec *codec)
 	spec->num_mux_defs = 1;
 	spec->input_mux = &spec->private_imux;
 
-	if (err < 0)
-		return err;
 	spec->init_verbs[spec->num_init_verbs++] = alc662_auto_init_verbs;
 	spec->mixers[spec->num_mixers] = alc662_capture_mixer;
 	spec->num_mixers++;