EAGLESIX-2651: SetIsSubset: rm old self-hosted test line

test/lib/pipeline/expressions/SetIsSubsetExpression.js

@@ -374,5 +374,3 @@ exports.SetIsSubsetExpression = {
 	},
 
 };
-
-if (!module.parent)(new(require("mocha"))()).ui("exports").reporter("spec").addFile(__filename).run(process.exit);