Route commerce_product_quantity.configuration does not exist

Problem/Motivation

Upon enabling the module I get error:

Route "commerce_product_quantity.configuration" does not exist.

This route is set in commerce_product_quantity.info.yml but is not defined in commerce_product_quantity.routing.yml.

Steps to reproduce

Enable the module.

Proposed resolution

Either remove the configure parameter from info file, or create the configuration route.