lakitu: Update kernel ebuild to remove unnecessary ebuild variables.

As uprev bot will be in-place for both presubmit and official builds,
manual uprevving is not needed. Therefore, it is safe to remove
CROS_WORKON_BLACKLIST and other not required workon variables.

BUG=b/169936343
TEST=presubmit
RELEASE_NOTE=None

Change-Id: If175e2fc2ccbe28173c4de0a606cb1d41e23f60c
diff --git a/overlay-lakitu/sys-kernel/lakitu-kernel-4_19/lakitu-kernel-4_19-9999.ebuild b/overlay-lakitu/sys-kernel/lakitu-kernel-4_19/lakitu-kernel-4_19-9999.ebuild
index 614ac07..6bec0f8 100644
--- a/overlay-lakitu/sys-kernel/lakitu-kernel-4_19/lakitu-kernel-4_19-9999.ebuild
+++ b/overlay-lakitu/sys-kernel/lakitu-kernel-4_19/lakitu-kernel-4_19-9999.ebuild
@@ -1,15 +1,10 @@
 # Copyright 2019 The Chromium OS Authors. All rights reserved.
 # Distributed under the terms of the GNU General Public License v2
 
-# Any changes submitted in the current ebuild needs to be duplicated in
-# `non-9999` ebuild as well.
-
 EAPI=6
 
-CROS_WORKON_REPO="https://cos.googlesource.com"
 CROS_WORKON_PROJECT="third_party/kernel"
 CROS_WORKON_LOCALNAME="kernel/v4.19"
-CROS_WORKON_BLACKLIST="1"
 
 CHROMEOS_KERNEL_CONFIG="${FILESDIR}/base.config"
 
@@ -19,7 +14,7 @@
 STRIP_MASK+=" /usr/src/${P}/build/vmlinux"
 STRIP_MASK+=" *.ko"
 
-DESCRIPTION="Chromium OS Linux Kernel 4.19"
+DESCRIPTION="COS Linux Kernel 4.19"
 HOMEPAGE="https://www.chromium.org/chromium-os/chromiumos-design-docs/chromium-os-kernel"
 KEYWORDS="~*"
 IUSE="module_sign gpu"
diff --git a/overlay-lakitu/sys-kernel/lakitu-kernel-5_4/lakitu-kernel-5_4-9999.ebuild b/overlay-lakitu/sys-kernel/lakitu-kernel-5_4/lakitu-kernel-5_4-9999.ebuild
index 0c08e01..c327486 100644
--- a/overlay-lakitu/sys-kernel/lakitu-kernel-5_4/lakitu-kernel-5_4-9999.ebuild
+++ b/overlay-lakitu/sys-kernel/lakitu-kernel-5_4/lakitu-kernel-5_4-9999.ebuild
@@ -1,15 +1,10 @@
 # Copyright 2020 The Chromium OS Authors. All rights reserved.
 # Distributed under the terms of the GNU General Public License v2
 
-# Any changes submitted in the current ebuild needs to be duplicated in
-# `non-9999` ebuild as well.
-
 EAPI=6
 
-CROS_WORKON_REPO="https://cos.googlesource.com"
 CROS_WORKON_PROJECT="third_party/kernel"
 CROS_WORKON_LOCALNAME="kernel/v5.4"
-CROS_WORKON_BLACKLIST="1"
 
 CHROMEOS_KERNEL_CONFIG="${FILESDIR}/base.config"