Remove gu install native-image command
Remove gu install native-image command

This is not available for Mandrel and it's also redundant for GraalVM as
it's being taken care of by the setup-graalvm action.

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