package/keepalived: drop autoreconf

Commit 78d4ddbf3b416885d2e99b32363b174755f9bb30 removed all patches so
autoreconf is not needed anymore

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/keepalived/keepalived.mk

@@ -10,8 +10,6 @@ KEEPALIVED_DEPENDENCIES = host-pkgconf openssl
 KEEPALIVED_LICENSE = GPL-2.0+
 KEEPALIVED_LICENSE_FILES = COPYING
 KEEPALIVED_CONF_OPTS = --disable-hardening
-# We're patching configure.ac
-KEEPALIVED_AUTORECONF = YES
 
 ifeq ($(BR2_PACKAGE_JSON_C),y)
 KEEPALIVED_DEPENDENCIES += json-c