pulseaudio: remove autoreconf

Commit 08c7b77803285 (package/pulseaudio: bump version to 12.0) removed
configure.ac patch, but forgot to drop autoreconf. Fix that.

Cc: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/pulseaudio/pulseaudio.mk

@@ -15,9 +15,6 @@ PULSEAUDIO_CONF_OPTS = \
 	--disable-legacy-database-entry-format \
 	--disable-manpages
 
-# 0001-memfd-wrappers-only-define-memfd_create-if-not-alrea.patch
-PULSEAUDIO_AUTORECONF = YES
-
 PULSEAUDIO_DEPENDENCIES = \
 	host-pkgconf libtool libsndfile speex host-intltool \
 	$(if $(BR2_PACKAGE_LIBGLIB2),libglib2) \