test: Investigate inconsistent webRTC Interop Tests

[maschad]

          WebRTC tests seem flaky to me. I don't think this is a resource issue in CI. Running these tests locally (in compose and npm test) also sometimes fail for me.

Let's remove the webrtc tests for now, and add them back in when they're not flaky.

Originally posted by @MarcoPolo in #1809 (comment)