package/pipewire: drop consecutive empty lines

Fixes:

package/pipewire/pipewire.mk:184: consecutive empty lines

https://gitlab.com/buildroot.org/buildroot/-/jobs/4682253962/raw

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/pipewire/pipewire.mk

@@ -183,7 +183,6 @@ else
 PIPEWIRE_CONF_OPTS += -Dlibusb=disabled
 endif
 
-
 ifeq ($(BR2_PACKAGE_LIBSNDFILE),y)
 PIPEWIRE_CONF_OPTS += -Dpw-cat=enabled -Dsndfile=enabled
 PIPEWIRE_DEPENDENCIES += libsndfile