Update tooltip for WIP button

I _think_ this is for the WIP button? I hope? IDK.

app/assets/javascripts/vue_merge_request_widget/components/states/work_in_progress.vue

@@ -10,7 +10,6 @@ import getStateQuery from '../../queries/get_state.query.graphql';
 import workInProgressQuery from '../../queries/states/work_in_progress.query.graphql';
 import removeWipMutation from '../../queries/toggle_wip.mutation.graphql';
 import StatusIcon from '../mr_widget_status_icon.vue';
-import tooltip from '../../../vue_shared/directives/tooltip';
 import eventHub from '../../event_hub';
 
 export default {
@@ -19,9 +18,6 @@ export default {
     StatusIcon,
     GlButton,
   },
-  directives: {
-    tooltip,
-  },
   mixins: [glFeatureFlagMixin(), mergeRequestQueryVariablesMixin],
   apollo: {
     userPermissions: {