ALSA: ppc: fix unused function local variable

The function local variable is not used anymore, while it is left.

This commit deletes it.

Fixes: 25a5a77 ("ALSA: core: Make snd_card_free() return void")
Reported-by: Stephen Rothwell <[email protected]>
Link: https://lore.kernel.org/r/[email protected]/
Cc: Uwe Kleine-König <[email protected]>
Signed-off-by: Takashi Sakamoto <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Takashi Iwai <[email protected]>

Author: takaswie

sound/ppc/snd_ps3.c

@@ -1046,7 +1046,6 @@ static int snd_ps3_driver_probe(struct ps3_system_bus_device *dev)
 /* called when module removal */
 static void snd_ps3_driver_remove(struct ps3_system_bus_device *dev)
 {
-	int ret;
 	pr_info("%s:start id=%d\n", __func__,  dev->match_id);
 
 	/*