diff --git a/sdk_container/src/third_party/coreos-overlay/coreos-base/system_api/system_api-0.0.1-r206.ebuild b/sdk_container/src/third_party/coreos-overlay/coreos-base/system_api/system_api-0.0.1-r206.ebuild
deleted file mode 100644
index 217b87adcc..0000000000
--- a/sdk_container/src/third_party/coreos-overlay/coreos-base/system_api/system_api-0.0.1-r206.ebuild
+++ /dev/null
@@ -1,28 +0,0 @@
-# Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
-# Distributed under the terms of the GNU General Public License v2
-
-EAPI=2
-CROS_WORKON_COMMIT="6ead34613a4a1ac1911af2ecbbddd204d15305ab"
-CROS_WORKON_TREE="e162130e96a41a9e0d05952a065aaf42e3b969c9"
-CROS_WORKON_PROJECT="chromiumos/platform/system_api"
-
-inherit cros-workon toolchain-funcs
-
-DESCRIPTION="Chrome OS system API (D-Bus service names, etc.)"
-HOMEPAGE="http://www.chromium.org/"
-LICENSE="BSD"
-SLOT="0"
-KEYWORDS="amd64 arm x86"
-
-# Likewise, block libchromeos-0.0.1-r78 or older, that installs
-# dbus/service_constants.h. TODO(satorux): Remove this after a month.
-RDEPEND="!<=chromeos-base/libchromeos-0.0.1-r78"
-
-DEPEND="${RDEPEND}"
-
-CROS_WORKON_LOCALNAME="$(basename ${CROS_WORKON_PROJECT})"
-
-src_install() {
-	insinto /usr/include/chromeos/dbus
-	doins -r dbus/*
-}
diff --git a/sdk_container/src/third_party/coreos-overlay/coreos-base/system_api/system_api-9999.ebuild b/sdk_container/src/third_party/coreos-overlay/coreos-base/system_api/system_api-9999.ebuild
deleted file mode 100644
index 63ee12f1d1..0000000000
--- a/sdk_container/src/third_party/coreos-overlay/coreos-base/system_api/system_api-9999.ebuild
+++ /dev/null
@@ -1,26 +0,0 @@
-# Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
-# Distributed under the terms of the GNU General Public License v2
-
-EAPI=2
-CROS_WORKON_PROJECT="chromiumos/platform/system_api"
-
-inherit cros-workon toolchain-funcs
-
-DESCRIPTION="Chrome OS system API (D-Bus service names, etc.)"
-HOMEPAGE="http://www.chromium.org/"
-LICENSE="BSD"
-SLOT="0"
-KEYWORDS="~amd64 ~arm ~x86"
-
-# Likewise, block libchromeos-0.0.1-r78 or older, that installs
-# dbus/service_constants.h. TODO(satorux): Remove this after a month.
-RDEPEND="!<=chromeos-base/libchromeos-0.0.1-r78"
-
-DEPEND="${RDEPEND}"
-
-CROS_WORKON_LOCALNAME="$(basename ${CROS_WORKON_PROJECT})"
-
-src_install() {
-	insinto /usr/include/chromeos/dbus
-	doins -r dbus/*
-}
diff --git a/sdk_container/src/third_party/coreos-overlay/metadata/md5-cache/coreos-base/system_api-0.0.1-r206 b/sdk_container/src/third_party/coreos-overlay/metadata/md5-cache/coreos-base/system_api-0.0.1-r206
deleted file mode 100644
index b74cf22400..0000000000
--- a/sdk_container/src/third_party/coreos-overlay/metadata/md5-cache/coreos-base/system_api-0.0.1-r206
+++ /dev/null
@@ -1,12 +0,0 @@
-DEFINED_PHASES=info install setup unpack
-DEPEND=!<=chromeos-base/libchromeos-0.0.1-r78 dev-vcs/git
-DESCRIPTION=Chrome OS system API (D-Bus service names, etc.)
-EAPI=2
-HOMEPAGE=http://www.chromium.org/
-IUSE=cros_workon_tree_e162130e96a41a9e0d05952a065aaf42e3b969c9 profiling
-KEYWORDS=amd64 arm x86
-LICENSE=BSD
-RDEPEND=!<=chromeos-base/libchromeos-0.0.1-r78
-SLOT=0
-_eclasses_=cros-workon	371c4d0af591fe21f1a019af07137224	eutils	6faef4c127028ccbba3a11400d24ae34	flag-o-matic	eda1c0b5ba85b3eeb555a071d69eb819	git-2	e28f0d8a9b321431b1e699782851b827	multilib	3bf24e6abb9b76d9f6c20600f0b716bf	toolchain-funcs	0dfbfa13f57c6184f4728d12ac002aac
-_md5_=e537ca239432ed52d60f8f5ea6f3445d
diff --git a/sdk_container/src/third_party/coreos-overlay/metadata/md5-cache/coreos-base/system_api-9999 b/sdk_container/src/third_party/coreos-overlay/metadata/md5-cache/coreos-base/system_api-9999
deleted file mode 100644
index a8e950c9b0..0000000000
--- a/sdk_container/src/third_party/coreos-overlay/metadata/md5-cache/coreos-base/system_api-9999
+++ /dev/null
@@ -1,12 +0,0 @@
-DEFINED_PHASES=info install setup unpack
-DEPEND=!<=chromeos-base/libchromeos-0.0.1-r78 dev-vcs/git
-DESCRIPTION=Chrome OS system API (D-Bus service names, etc.)
-EAPI=2
-HOMEPAGE=http://www.chromium.org/
-IUSE=cros_workon_tree_* profiling
-KEYWORDS=~amd64 ~arm ~x86
-LICENSE=BSD
-RDEPEND=!<=chromeos-base/libchromeos-0.0.1-r78
-SLOT=0
-_eclasses_=cros-workon	371c4d0af591fe21f1a019af07137224	eutils	6faef4c127028ccbba3a11400d24ae34	flag-o-matic	eda1c0b5ba85b3eeb555a071d69eb819	git-2	e28f0d8a9b321431b1e699782851b827	multilib	3bf24e6abb9b76d9f6c20600f0b716bf	toolchain-funcs	0dfbfa13f57c6184f4728d12ac002aac
-_md5_=5d6af7986efe5eccc99429ae002311ef