Remove warning regarding Cache interface
Remove warning regarding Cache interface

I assume that the discussion has setlle (the link isn't pointing to
anything specific). Tentatively removing the warning.

zuzusik/ServiceWorker,karolklp/ServiceWorker,zuzusik/ServiceWorker,chadoliver/ServiceWorker,karolklp/ServiceWorker,martinthomson/ServiceWorker,chadoliver/ServiceWorker,slightlyoff/ServiceWorker,martinthomson/ServiceWorker,karolklp/ServiceWorker,slightlyoff/ServiceWorker,zuzusik/ServiceWorker,martinthomson/ServiceWorker,justinleoye/ServiceWorker,justinleoye/ServiceWorker,justinleoye/ServiceWorker,mkruisselbrink/ServiceWorker,mkruisselbrink/ServiceWorker,chadoliver/ServiceWorker