alsa-state: do not remove 'asound.conf'

The removal was added as a workaround to avoid installing a generic
asound.conf that was conflicting with our cards.

This is no longer needed as poky installs an empty asound.conf and
meta-fsl-arm overrides it with per-platform asound.conf files.

Signed-off-by: Javier Viguera <javier.viguera@digi.com>

meta-digi-arm/recipes-bsp/alsa-state/alsa-state.bbappend

@@ -10,10 +10,6 @@ SRC_URI += " \
     file://asound.play.state \
 "
 
-# The default 'asound.conf' config file is not valid for our platforms and
-# according to <http://www.alsa-project.org/main/index.php/Asoundrc> is not
-# required
 do_install_append() {
-	rm -f ${D}${sysconfdir}/asound.conf
 	ln -sf asound.micro_play.state ${D}${localstatedir}/lib/alsa/asound.state
 }