Remove api.ServiceWorkerGlobalScope.caches from BCD (#13487)
Remove api.ServiceWorkerGlobalScope.caches from BCD (#13487)

This PR removes the `caches` member of the `ServiceWorkerGlobalScope` API from BCD.  This feature is basically just a duplicate of the `caches` feature in `_globals`, and the data matches perfectly between the two (aside from Firefox, though that's due to service worker support being added later,).
chrisdavidmills/browser-compat-data,chrisdavidmills/browser-compat-data,mdn/browser-compat-data,mdn/browser-compat-data