make circleci ui-upload unconditional
make circleci ui-upload unconditional

It doesn't depend on $DOCKER_USER. Also, because it was tagged on
without a &&, it was masking errors in the dockerhub image uploads.

weaveworks/scope,weaveworks/scope,weaveworks/scope,kinvolk/scope,weaveworks/scope,alban/scope,kinvolk/scope,alban/scope,weaveworks/scope,alban/scope,alban/scope,kinvolk/scope,kinvolk/scope,kinvolk/scope,weaveworks/scope,alban/scope,alban/scope,kinvolk/scope