Merge branch 'mrincon-remove-unused-helpers-file' into 'master'

Remove unused file

See merge request gitlab-org/gitlab!22154

spec/javascripts/monitoring/helpers.js

-// eslint-disable-next-line import/prefer-default-export
-export const resetStore = store => {
-  store.replaceState({
-    showEmptyState: true,
-    emptyState: 'loading',
-    groups: [],
-  });
-};