Revert "remove --ssh_options argument, temporarily, until a cq revs"

This reverts commit c3a87da81eafd83d09246ff0ee8339fd342b2e33.

Change-Id: I9f85bdcbb8707e0671cc3fb3cf1bdf8650c13432
Reviewed-on: https://chromium-review.googlesource.com/168140
Tested-by: Aviv Keshet <akeshet@chromium.org>
Commit-Queue: Aviv Keshet <akeshet@chromium.org>
Reviewed-by: Matt Tennant <mtennant@chromium.org>
diff --git a/cros_run_vm_test b/cros_run_vm_test
index 40126b9..0af483d 100755
--- a/cros_run_vm_test
+++ b/cros_run_vm_test
@@ -88,6 +88,7 @@
     --no-quickmerge \
     --no-experimental \
     --ssh_verbosity 3 \
+    --ssh_options "-F /dev/null -i /dev/null" \
     --debug \
     --results_dir "${FLAGS_results_dir_root}" \
     "${test_args[@]}" \