diff --git a/sdk_container/src/third_party/coreos-overlay/profiles/coreos/base/package.mask b/sdk_container/src/third_party/coreos-overlay/profiles/coreos/base/package.mask
index f4a4e0090b..a58a51a895 100644
--- a/sdk_container/src/third_party/coreos-overlay/profiles/coreos/base/package.mask
+++ b/sdk_container/src/third_party/coreos-overlay/profiles/coreos/base/package.mask
@@ -7,9 +7,6 @@
 # version of these packages even if a newer stable version becomes
 # available in portage:
 
-# Use the 3.* series of syslinux, seems to work correctly with the
-# chromeos build system for now
->=sys-boot/syslinux-3.90
 >=net-misc/tlsdate-0.0.6
 
 # Stick with python 2 for now
diff --git a/sdk_container/src/third_party/coreos-overlay/profiles/coreos/targets/generic/package.mask b/sdk_container/src/third_party/coreos-overlay/profiles/coreos/targets/generic/package.mask
deleted file mode 100644
index 70ab25c124..0000000000
--- a/sdk_container/src/third_party/coreos-overlay/profiles/coreos/targets/generic/package.mask
+++ /dev/null
@@ -1,17 +0,0 @@
-# Copyright (c) 2009 The Chromium OS Authors. All rights reserved.
-# Distributed under the terms of the GNU General Public License v2
-
-# TODO: Fix lsof to cross compile on ARM
->sys-process/lsof-4.81-r2
-
-# libpng security vulnerability fix
-<media-libs/libpng-1.2.44
-
-# The following are here because we override the ebuilds from the
-# portage tree for a reason other than adding an ebuild from upstream
-# that wasn't yet in our portage tree. We want to keep using our
-# version of these packages even if a newer stable version becomes
-# available in portage:
-
-# Custom patches
->=sys-boot/syslinux-3.84