message: Migrate affinity tooltips to PF4
diff: import * as React from 'react';
  import * as _ from 'lodash';
  import { MinusCircleIcon, PlusCircleIcon } from '@patternfly/react-icons';
  +import { Tooltip } from '@patternfly/react-core';
  import { MatchExpressions } from './match-expressions';
  import { NodeAffinity as NodeAffinityType, MatchExpression, PodAffinity as PodAffinityType } from '../../../../module/k8s';
  -import { Tooltip } from '../../../utils/tooltip';
  const requiredTooltip = 'Required rules must be met before a pod can be scheduled on a node.';
  const preferredTooltip = 'Preferred rules specify that, if the rule is met, the scheduler tries to enforce the rules, but does not guarantee enforcement.';
  