libtirpc: drop redundant PACKAGECONFIG

(From OE-Core rev: a2d0f2dd46c95309de00368498a73f58f523accc)

Signed-off-by: Yi Zhao <yi.zhao@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-extended/libtirpc/libtirpc_1.3.4.bb

@@ -20,13 +20,11 @@ CVE_STATUS[CVE-2021-46828] = "fixed-version: fixed in 1.3.3rc1 so not present in
 
 inherit autotools pkgconfig
 
-PACKAGECONFIG ??= ""
-PACKAGECONFIG[gssapi] = "--enable-gssapi,--disable-gssapi,krb5"
-
 PACKAGECONFIG ??= "\
 	${@bb.utils.filter('DISTRO_FEATURES', 'ipv6', d)} \
 "
 PACKAGECONFIG[ipv6] = "--enable-ipv6,--disable-ipv6"
+PACKAGECONFIG[gssapi] = "--enable-gssapi,--disable-gssapi,krb5"
 
 do_install:append() {
 	test -e ${D}${sysconfdir}/netconfig && chown root:root ${D}${sysconfdir}/netconfig