private static void removeNamespaceQuota(final MasterProcedureEnv env, final String namespaceName)
    throws IOException {
    env.getMasterServices().getMasterQuotaManager().removeNamespaceQuota(namespaceName);
  }
remove quota for the namespace
@param env           MasterProcedureEnv
@param namespaceName name of the namespace in string format
hbase-server/src/main/java/org/apache/hadoop/hbase/master/procedure/DeleteNamespaceProcedure.java