That’ll only delete it from the user partition, not the system partition. You’ll need root access to completely wipe them from the system partition. This is why all the apps and services magically reappear if you do a factory reset. Sure, deleting it via ADB without root will in fact remove the apps from the user partition, stopping them from running and gaining access to user data, it won’t free up any space, if that’s what you want. Then you’ll need to get root access.