vboot: remove unused CombineUint16Pair function

BUG=b:124141368
TEST=make clean && make runtests
BRANCH=none

Change-Id: Ifd7dcc1414248b025a8a4bc2942db11814bc8be5
Signed-off-by: Joel Kitching <kitching@google.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/vboot_reference/+/1675865
Reviewed-by: Julius Werner <jwerner@chromium.org>
Tested-by: Joel Kitching <kitching@chromium.org>
Commit-Queue: Joel Kitching <kitching@chromium.org>
2 files changed