Currently, clj-http-client automatically creates a metric for every url and for every url + method. While this may be helpful in some use cases, at least for Puppet Server we have metric-ids for all the metrics we care about, so these url/url and method metrics are unneeded.

We should add a setting that can be set when creating an http client that determines whether to create url metrics or not - something like `enable-url-metrics?` - and then we can set this to false in puppet server to turn these metrics off. This shouldn't need to be a user-configurable setting (for puppet server users).