diff --git a/sdk_container/src/third_party/coreos-overlay/coreos/config/env/app-admin/setools b/sdk_container/src/third_party/coreos-overlay/coreos/config/env/app-admin/setools
deleted file mode 100644
index 882a117cd1..0000000000
--- a/sdk_container/src/third_party/coreos-overlay/coreos/config/env/app-admin/setools
+++ /dev/null
@@ -1,2 +0,0 @@
-export ac_cv_file__build_amd64_usr__usr_lib64_libsepol_a=yes
-
diff --git a/sdk_container/src/third_party/coreos-overlay/coreos/config/env/app-emulation/xen b/sdk_container/src/third_party/coreos-overlay/coreos/config/env/app-emulation/xen
deleted file mode 100644
index 60101e0239..0000000000
--- a/sdk_container/src/third_party/coreos-overlay/coreos/config/env/app-emulation/xen
+++ /dev/null
@@ -1,5 +0,0 @@
-# Creating symlinks on FAT doesn't work, so don't do that
-INSTALL_MASK="${INSTALL_MASK}
-    /boot/xen-?.?.gz
-    /boot/xen-?.gz
-    /boot/xen.gz"
diff --git a/sdk_container/src/third_party/coreos-overlay/coreos/config/env/app-emulation/xen-tools b/sdk_container/src/third_party/coreos-overlay/coreos/config/env/app-emulation/xen-tools
deleted file mode 100644
index 422b8b0eda..0000000000
--- a/sdk_container/src/third_party/coreos-overlay/coreos/config/env/app-emulation/xen-tools
+++ /dev/null
@@ -1,6 +0,0 @@
-# We provide xenstore as a standalone package
-INSTALL_MASK="${INSTALL_MASK}
-    /usr/bin/xenstore
-    /usr/lib/debug/usr/bin/xenstore.debug
-    /usr/lib/debug/usr/lib*/libxenstore.so*
-    /usr/lib*/libxenstore.so*"
diff --git a/sdk_container/src/third_party/coreos-overlay/coreos/config/env/sys-apps/busybox b/sdk_container/src/third_party/coreos-overlay/coreos/config/env/sys-apps/busybox
deleted file mode 100644
index e02063bc6f..0000000000
--- a/sdk_container/src/third_party/coreos-overlay/coreos/config/env/sys-apps/busybox
+++ /dev/null
@@ -1,5 +0,0 @@
-# savedconfig by default saves the currently generated config into
-# /etc/portage/savedconfig. However we want to avoid placing it here
-# so that every re-emerge will pick up the configs from
-# chromeos-base/busybox-config
-INSTALL_MASK+=" /etc/portage/savedconfig"
diff --git a/sdk_container/src/third_party/coreos-overlay/coreos/config/env/sys-apps/efunctions b/sdk_container/src/third_party/coreos-overlay/coreos/config/env/sys-apps/efunctions
deleted file mode 100644
index 14e19ac0dc..0000000000
--- a/sdk_container/src/third_party/coreos-overlay/coreos/config/env/sys-apps/efunctions
+++ /dev/null
@@ -1,3 +0,0 @@
-# Don't filter out /etc/init.d/functions.sh
-PKG_INSTALL_MASK="${PKG_INSTALL_MASK/\/etc\/init.d}"
-INSTALL_MASK="${INSTALL_MASK/\/etc\/init.d}"