Updated the Reactive SQL Clients guide to reflect the actual code of the quickstart.
Updated the Reactive SQL Clients guide to reflect the actual code of the quickstart.

Also, removed mentions of Axle because it's no longer used here.

quarkusio/quarkus,quarkusio/quarkus,quarkusio/quarkus,quarkusio/quarkus,quarkusio/quarkus