A patch made in #15672 was found to be unnecessary. Instead of setting
a `rootGlobals` object upon construction of the root compartment, we
are now creating a `sentryHooks` object in the initial top-level
compartment. I hadn't realized at the time that the root compartment
would inherit all properties of the initial compartment `globalThis`.
This accomplishes the same goals as #15672 except without needing a
patch.