Unused test tasks still create folder when imported into IDEA

[davidsowerby]

Does not break anything, but is an unnecessary distraction.

One way to resolve might be to have two plugins. the first applies the configuration, the second creates the tasks as configured.

It might look like:

apply: simplycd-configure

simplycd{

    integrationTest {
        enabled=true
    }

}

apply: simplycd-lifecycle