Media.net RTD module: unstable test

[patmmccann]

Type of issue

Please see https://app.circleci.com/pipelines/github/prebid/Prebid.js/11443/workflows/e0845e9e-b598-4d09-bb24-ba6b22ca632a/jobs/22197

Your tests shouldn't actually call and execute your js.

[patmmccann]

Your js doesnt work so we deleted all your tests in #8463 . Please fix all three issues, that your tests call your js, and that your js doesnt work, and that you don't use the loadexternalscript method. or we'll be forced to remove the module from the project in prebid 7 coming out next month.