brillo_update_payload: stop searching /usr/lib/crosutils

In the SDK & on boards, we have /usr/share/misc/shflags everywhere.
So we don't need this old /usr/lib/crosutils path at all.

BUG=None
TEST=None

Change-Id: I89b1d96e5f28f7952175aff6ca9a6ccb462a17c5
Reviewed-on: https://chromium-review.googlesource.com/1278108
Commit-Ready: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Amin Hassani <ahassani@chromium.org>
Reviewed-by: Alex Deymo <deymo@google.com>
diff --git a/scripts/brillo_update_payload b/scripts/brillo_update_payload
index b256b36..f2f28b9 100755
--- a/scripts/brillo_update_payload
+++ b/scripts/brillo_update_payload
@@ -90,7 +90,7 @@
 load_shflags() {
   local my_dir="$(dirname "$(readlink -f "$0")")"
   local path
-  for path in /usr/share/misc {/usr/lib/crosutils,"${my_dir}"}/lib/shflags; do
+  for path in /usr/share/misc "${my_dir}"/lib/shflags; do
     if [[ -r "${path}/shflags" ]]; then
       . "${path}/shflags" || die "Could not load ${path}/shflags."
       return