vboot: Remove vb2ex_diag_storage_test_control

Remove function vb2ex_diag_storage_test_control, after UI code
centralize, since this function is not used anymore in vboot.

Remove enum vb2_diag_storage_test, which is for the parameter of
vb2ex_diag_storage_test_control.

BUG=b:172339016
TEST=DEBUG=1 make -j test_setup && make -j run_test_scripts
BRANCH=none

Cq-Depend: chromium:3142697
Signed-off-by: edisonhello <edisonhello@google.com>
Change-Id: Ie9cdeecd78973074cf363bf41bd37244a3b6d1af
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/vboot_reference/+/3143813
Reviewed-by: Yu-Ping Wu <yupingso@chromium.org>
2 files changed