Support remove label

When I use PushdownBinaryOpFilters Example: sum(rabbitmq_queue_messages_unacknowledged) change to sum(rabbitmq_queue_messages_unacknowledged{job=''rabbitmq-exporter}) But before PushdownBinartOpFilters，I want remove the label of job Example: sum(rabbitmq_queue_messages_unacknowledged{job=''rabbitmq-exporter}) change to sum(rabbitmq_queue_messages_unacknowledged) Does this feature currently support it? It's really useful !