package/bluez-alsa: fix empty line

Fix the following warning added by commit
3ba8e88e396f216ac8486580b8817aac92ae93b2:

package/bluez-alsa/bluez-alsa.mk:79: consecutive empty lines

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

package/bluez-alsa/bluez-alsa.mk

@@ -76,5 +76,4 @@ else
 BLUEZ_ALSA_CONF_OPTS += --without-libopenaptx --disable-aptx --disable-aptx-hd
 endif
 
-
 $(eval $(autotools-package))