Remove the popover directive

app/assets/javascripts/vue_shared/directives/popover.js

-import $ from 'jquery';
-
-/**
- * Helper to user bootstrap popover in vue.js.
- * Follow docs for html attributes: https://getbootstrap.com/docs/3.3/javascript/#static-popover
- *
- * @example
- * import popover from 'vue_shared/directives/popover.js';
- * {
- *   directives: [popover]
- * }
- * <a v-popover="{options}">popover</a>
- */
-export default {
-  bind(el, binding) {
-    $(el).popover(binding.value);
-  },
-
-  unbind(el) {
-    $(el).popover('dispose');
-  },
-};