new_variant: remove ADD_PRIV_YAML from volteer and dedede

Due to legacy reasons, step_names.ADD_PRIV_YAML was still in the
repo_upload_list for volteer and the dedede reference boards. Neither
board uses yaml files, so remove this. Fortunately, new_variant.py
recognizes that there is no CL associated with the ADD_PRIV_YAML
step and doesn't try to upload it.

BUG=None
TEST=create a new variant of volteer, waddledee, or waddledoo. Verify
that .new_variant.yaml does not have the add_priv_yaml step.

Change-Id: Ia971968c1ecb6f55ef3577f6d3fa893a9610f107
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/dev-util/+/2287753
Tested-by: Paul Fagerburg <pfagerburg@chromium.org>
Auto-Submit: Paul Fagerburg <pfagerburg@chromium.org>
Reviewed-by: Jack Rosenthal <jrosenth@chromium.org>
Commit-Queue: Jack Rosenthal <jrosenth@chromium.org>
2 files changed