depthcharge: remove non-existent display.c from Makefile

display.c was previously removed in CL:2512739, but was not
removed from the corresponding Makefile in src/debug/cli.

BUG=none
TEST=Build locally
BRANCH=none

Signed-off-by: Joel Kitching <kitching@google.com>
Change-Id: Ie3e4c05001f784e739a12624a6f27c662d59b5d3
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/depthcharge/+/2626968
Tested-by: Joel Kitching <kitching@chromium.org>
Auto-Submit: Joel Kitching <kitching@chromium.org>
Reviewed-by: Yu-Ping Wu <yupingso@chromium.org>
Reviewed-by: Raul E Rangel <rrangel@chromium.org>
Commit-Queue: Raul E Rangel <rrangel@chromium.org>
1 file changed