overlay afterburn: remove unnecessary patches for 5.5.0

0003-encode-information-for-systemd-networkd-wait-online.patch
can be dropped, as it was already merged to upstream.
coreos/afterburn@d2cc340

Since upstream does not enable `lto = true` any more in
coreos/afterburn@464c7f9,
it is not necessary to keep the LTO patch.
Just drop it.

Author: dongsupark

sdk_container/src/third_party/coreos-overlay/coreos-base/afterburn/afterburn-9999.ebuild

@@ -312,8 +312,6 @@ RDEPEND="
 PATCHES=(
 	"${FILESDIR}"/0001-Revert-remove-cl-legacy-feature.patch
 	"${FILESDIR}"/0002-util-cmdline-Handle-the-cmdline-flags-as-list-of-sup.patch
-	"${FILESDIR}"/0003-encode-information-for-systemd-networkd-wait-online.patch
-	"${FILESDIR}"/0004-lto-thin.patch
 )
 
 src_unpack() {