remove static method
Implementation
static Future<void> remove(String key, {UStorageBucket bucket = UStorageBucket.support}) async {
await _ensure();
final _BucketIndex index = _writable(bucket);
if (index.entries.remove(key) == null) return;
await _backend.delete(_pathFor(bucket, key));
_scheduleSave(index);
_events.add(UStorageEvent(UStorageEventType.removed, bucket, key));
}