tlsdate: Avoid declaring vars in for-loop conditions.

Change some code in platform-cros-util-unittest.c to avoid
errors when using old compilers. Also delete an unused
variable in platform-cros.c.

BUG=chromium:736689
TEST=tests still pass in local build

Change-Id: Ib80b8162203f4041b4b5afa9c7508a2bbc73c93f
Reviewed-on: https://chromium-review.googlesource.com/548217
Commit-Queue: Dan Erat <derat@chromium.org>
Tested-by: Dan Erat <derat@chromium.org>
Trybot-Ready: Dan Erat <derat@chromium.org>
Reviewed-by: Luis Lozano <llozano@chromium.org>
Reviewed-by: Manoj Gupta <manojgupta@chromium.org>
2 files changed