Replace BSTooltip with GlTooltip

Replaced the old tooltip

app/assets/javascripts/mirrors/mirror_repos.js

@@ -4,6 +4,7 @@ import { __ } from '~/locale';
 import { deprecatedCreateFlash as Flash } from '~/flash';
 import axios from '~/lib/utils/axios_utils';
 import SSHMirror from './ssh_mirror';
+import { hide } from '~/tooltips';
 
 export default class MirrorRepos {
   constructor(container) {
@@ -115,7 +116,7 @@ export default class MirrorRepos {
   /* eslint-disable class-methods-use-this */
   removeRow($target) {
     const row = $target.closest('tr');
-    $('.js-delete-mirror', row).tooltip('hide');
+    hide($('.js-delete-mirror', row));
     row.remove();
   }
   /* eslint-enable class-methods-use-this */