meta-lenovo: hr855xg2: Remove autotools specific config

We want to use packageconfig options instead of build system specific
ones.

Change-Id: Ie9b0b274c6ea137e44edaf02ea3d4f2109d727fb
Signed-off-by: William A. Kennington III <wak@google.com>
diff --git a/meta-lenovo/meta-hr855xg2/recipes-phosphor/network/phosphor-network_%.bbappend b/meta-lenovo/meta-hr855xg2/recipes-phosphor/network/phosphor-network_%.bbappend
index 0c42859..88d0733 100644
--- a/meta-lenovo/meta-hr855xg2/recipes-phosphor/network/phosphor-network_%.bbappend
+++ b/meta-lenovo/meta-hr855xg2/recipes-phosphor/network/phosphor-network_%.bbappend
@@ -1,6 +1,4 @@
 #"Copyright (c) 2019-present Lenovo
 #Licensed under BSD-3, see COPYING.BSD file for details."
-
-FILESEXTRAPATHS_prepend_hr855xg2 := "${THISDIR}/${PN}:"
-
-EXTRA_OECONF_append_hr855xg2 = " --disable-link-local-autoconfiguration"
+PACKAGECONFIG_remove_hr855xg2 = "default-link-local-autoconf"
+PACKAGECONFIG_remove_hr855xg2 = "default-ipv6-accept-ra"