chroot_version_hooks.d: purge old crosutils

This package was dropped in crrev.com/c/1843234.

BUG=None
TEST=CQ passes

Change-Id: I611f4b9f25fc9b186e4d83488d883f8456a0fb10
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosutils/+/2241016
Tested-by: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Alex Klein <saklein@chromium.org>
Commit-Queue: Mike Frysinger <vapier@chromium.org>
diff --git a/chroot_version_hooks.d/177_purge_crosutils b/chroot_version_hooks.d/177_purge_crosutils
new file mode 100644
index 0000000..30e258e
--- /dev/null
+++ b/chroot_version_hooks.d/177_purge_crosutils
@@ -0,0 +1,6 @@
+# Copyright 2020 The Chromium OS Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+# This package has been removed, so make sure it's cleaned up.
+sudo qmerge -Uqy dev-util/crosutils