diff --git a/sdk_container/src/third_party/coreos-overlay/sys-boot/syslinux/Manifest b/sdk_container/src/third_party/coreos-overlay/sys-boot/syslinux/Manifest
index 156951df6f..f607b2d82f 100644
--- a/sdk_container/src/third_party/coreos-overlay/sys-boot/syslinux/Manifest
+++ b/sdk_container/src/third_party/coreos-overlay/sys-boot/syslinux/Manifest
@@ -1,2 +1 @@
 DIST syslinux-4.07.tar.bz2 5761877 SHA256 1240a4e4219b518bdaef78931b6e901befeff35e6894ac6db785115848a7a05a SHA512 8efbd14803ec74c5ee699a754b4727e4b975c08afd4dbb39f4b7ccdb90743e4459cd4609c6f1065c7b7efaa26c9d465806254891795d363758f35a2fe5704ae5 WHIRLPOOL b68966ed87055a157812f36f2881b4a86797eacef1894b70c1a063327547264daa4b4ca1ea52ccb286ab86332c2163e57004d3503215497278e073b48583a9dc
-DIST syslinux-6.03-pre9.tar.xz 6820056 SHA256 adeda4dfbaf0e7604561d59d73f5f156d398f87411ca5f56f56fe15675f3e3b0 SHA512 9b3d14c496a5fe8fa446d1ce265e17508334b1cdae4443c6965861b6dcccb96099b9c97e492761af19732cb5dcabd0ad6642119a6defd0e18e072a0a752278d8 WHIRLPOOL 3a5a21927c3c00399c7ff8d64346c29706a0f0060c9ec05d38140529108b59bdb7ef1e83bd24afd9cbb80eb8b0d00185004c403e84e70fe7a8c0077e09d886b5
diff --git a/sdk_container/src/third_party/coreos-overlay/sys-boot/syslinux/syslinux-6.03_pre9.ebuild b/sdk_container/src/third_party/coreos-overlay/sys-boot/syslinux/syslinux-6.03_pre9.ebuild
deleted file mode 100644
index c9ccc48ef7..0000000000
--- a/sdk_container/src/third_party/coreos-overlay/sys-boot/syslinux/syslinux-6.03_pre9.ebuild
+++ /dev/null
@@ -1,84 +0,0 @@
-# Copyright 1999-2014 Gentoo Foundation
-# Distributed under the terms of the GNU General Public License v2
-# $Header: /var/cvsroot/gentoo-x86/sys-boot/syslinux/syslinux-6.03_pre1.ebuild,v 1.2 2014/02/09 18:04:43 zerochaos Exp $
-
-EAPI=5
-
-inherit eutils toolchain-funcs
-
-DESCRIPTION="SYSLINUX, PXELINUX, ISOLINUX, EXTLINUX and MEMDISK bootloaders"
-HOMEPAGE="http://www.syslinux.org/"
-SRC_URI="mirror://kernel/linux/utils/boot/syslinux/Testing/${PV:0:4}/${P/_/-}.tar.xz"
-
-LICENSE="GPL-2"
-SLOT="0"
-KEYWORDS="-* amd64 x86"
-IUSE="custom-cflags +perl"
-
-RDEPEND="sys-apps/util-linux
-		sys-fs/mtools
-		perl? (
-			dev-lang/perl
-			dev-perl/Crypt-PasswdMD5
-			dev-perl/Digest-SHA1
-		)"
-DEPEND="${RDEPEND}
-	dev-lang/nasm
-	virtual/os-headers"
-
-S=${WORKDIR}/${P/_/-}
-
-QA_PREBUILT="usr/share/${PN}/*.c32"
-
-src_prepare() {
-	# Don't prestrip or override user LDFLAGS, bug #305783
-	local SYSLINUX_MAKEFILES="extlinux/Makefile linux/Makefile mtools/Makefile \
-		sample/Makefile utils/Makefile"
-	sed -i ${SYSLINUX_MAKEFILES} -e '/^LDFLAGS/d' || die "sed failed"
-
-	if use custom-cflags; then
-		sed -i ${SYSLINUX_MAKEFILES} \
-			-e 's|-g -Os||g' \
-			-e 's|-Os||g' \
-			-e 's|CFLAGS[[:space:]]\+=|CFLAGS +=|g' \
-			|| die "sed custom-cflags failed"
-	else
-		QA_FLAGS_IGNORED="
-			/sbin/extlinux
-			/usr/bin/memdiskfind
-			/usr/bin/gethostip
-			/usr/bin/isohybrid
-			/usr/bin/syslinux
-			"
-	fi
-	case ${ARCH} in
-		amd64)	loaderarch="efi64" ;;
-		x86)	loaderarch="efi32" ;;
-		*)	ewarn "Unsupported architecture, building installers only." ;;
-	esac
-
-	# Don't build/install scripts if perl is disabled
-	if ! use perl; then
-		sed -i utils/Makefile \
-			-e 's/$(TARGETS)/$(C_TARGETS)/' \
-			-e 's/$(ASIS)//' \
-			|| die "sed remove perl failed"
-		rm man/{lss16toppm.1,ppmtolss16.1,syslinux2ansi.1} || die
-	fi
-}
-
-src_compile() {
-	# build system abuses the LDFLAGS variable to pass arguments to ld
-	unset LDFLAGS
-	if [[ ! -z ${loaderarch} ]]; then
-		emake CC=$(tc-getCC) LD=$(tc-getLD) ${loaderarch}
-	fi
-	emake CC=$(tc-getCC) LD=$(tc-getLD) ${loaderarch} installer
-}
-
-src_install() {
-	# parallel install fails sometimes
-	einfo "loaderarch=${loaderarch}"
-	emake -j1 LD=$(tc-getLD) INSTALLROOT="${D}" MANDIR=/usr/share/man bios ${loaderarch} install
-	dodoc README NEWS doc/*.txt
-}