ALSA: sb: remove redundant assignment to variable result

Variable result is initialized to a value that is never read and it is
re-assigned later. The initialization is redundant and can be removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

sound/isa/sb/sb_common.c

@@ -80,7 +80,7 @@ int snd_sbdsp_reset(struct snd_sb *chip)
 
 static int snd_sbdsp_version(struct snd_sb * chip)
 {
-	unsigned int result = -ENODEV;
+	unsigned int result;
 
 	snd_sbdsp_command(chip, SB_DSP_GET_VERSION);
 	result = (short) snd_sbdsp_get_byte(chip) << 8;