Depending on how much you want to remove, you have several options:
Delete a file
To delete a single file, delete it locally and redeploy it.
$ rm public/foo.html
$ firebase deploy
Disable hosting
If you want to delete the entire site on the Firebase host, you can completely disable hosting .
$ firebase hosting:disable
? Are you sure you want to disable Firebase Hosting?
This will immediately make your site inaccessible! Yes
✔ Hosting has been disabled for example-firebase. Deploy a new version to re-enable.
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