public static QuotaSettings unthrottleRegionServer(final String regionServer) {
    return throttle(null, null, null, regionServer, null, 0, null, QuotaScope.MACHINE);
  }
Remove the throttling for the specified region server.
@param regionServer the region Server
@return the quota settings
hbase-client/src/main/java/org/apache/hadoop/hbase/quotas/QuotaSettingsFactory.java