ALSA: emu10k1: delete an unnecessary condition

The "val" variable is an unsigned int so it's always <= UINT_MAX.  This
check is always true so it can be removed.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20200605110134.GC978434@mwanda


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