Removed redudant testrunners in platform2

This migrates all testrunners that just work with no issues on the
common-mk/testrunner.cc implementation.

BUG=chromium:456569
TEST=cros_run_unit_tests for all affected packages using rikku platform

Change-Id: I3ecc431db4a12dacc1d64941c9724a47a64c9aad
Reviewed-on: https://chromium-review.googlesource.com/513422
Commit-Ready: C Shapiro <shapiroc@google.com>
Tested-by: C Shapiro <shapiroc@google.com>
Reviewed-by: Ben Chan <benchan@chromium.org>
17 files changed