@Override
  public void enable() throws IOException {
  }
A {@link SpaceViolationPolicyEnforcement} which can be treated as a singleton. When a quota is
not defined on a table or we lack quota information, we want to avoid creating a policy, keeping
this path fast.
hbase-server/src/main/java/org/apache/hadoop/hbase/quotas/policies/MissingSnapshotViolationPolicyEnforcement.java