diff --git a/polygerrit-ui/app/elements/change/gr-change-metadata/gr-change-metadata-it_test.js b/polygerrit-ui/app/elements/change/gr-change-metadata/gr-change-metadata-it_test.js
index 50c2355..87e100c 100644
--- a/polygerrit-ui/app/elements/change/gr-change-metadata/gr-change-metadata-it_test.js
+++ b/polygerrit-ui/app/elements/change/gr-change-metadata/gr-change-metadata-it_test.js
@@ -21,7 +21,6 @@
 import {dom} from '@polymer/polymer/lib/legacy/polymer.dom.js';
 import {resetPlugins} from '../../../test/test-utils.js';
 import {pluginLoader} from '../../shared/gr-js-api-interface/gr-plugin-loader.js';
-import {pluginEndpoints} from '../../shared/gr-js-api-interface/gr-plugin-endpoints.js';
 import {_testOnly_initGerritPluginApi} from '../../shared/gr-js-api-interface/gr-gerrit.js';
 
 const testHtmlPlugin = document.createElement('dom-module');
@@ -119,8 +118,6 @@
         plugin.registerStyleModule('change-metadata', 'my-plugin-style');
       }, undefined, 'http://test.com/plugins/style.js');
       element = createElement();
-      sinon.stub(pluginEndpoints, 'importUrl')
-          .callsFake( url => Promise.resolve());
       pluginLoader.loadPlugins([]);
       pluginLoader.awaitPluginsLoaded().then(() => {
         flush(done);
diff --git a/polygerrit-ui/app/elements/change/gr-change-metadata/gr-change-metadata_test.js b/polygerrit-ui/app/elements/change/gr-change-metadata/gr-change-metadata_test.js
index 26baf3c..8ec3121 100644
--- a/polygerrit-ui/app/elements/change/gr-change-metadata/gr-change-metadata_test.js
+++ b/polygerrit-ui/app/elements/change/gr-change-metadata/gr-change-metadata_test.js
@@ -20,7 +20,6 @@
 import './gr-change-metadata.js';
 import {GerritNav} from '../../core/gr-navigation/gr-navigation.js';
 import {pluginLoader} from '../../shared/gr-js-api-interface/gr-plugin-loader.js';
-import {pluginEndpoints} from '../../shared/gr-js-api-interface/gr-plugin-endpoints.js';
 import {_testOnly_initGerritPluginApi} from '../../shared/gr-js-api-interface/gr-gerrit.js';
 
 const basicFixture = fixtureFromElement('gr-change-metadata');
@@ -37,8 +36,6 @@
     });
 
     element = basicFixture.instantiate();
-    sinon.stub(pluginEndpoints, 'importUrl')
-        .callsFake( url => Promise.resolve());
   });
 
   test('computed fields', () => {
diff --git a/polygerrit-ui/app/elements/change/gr-reply-dialog/gr-reply-dialog-it_test.js b/polygerrit-ui/app/elements/change/gr-reply-dialog/gr-reply-dialog-it_test.js
index 9a94d27..63ab267 100644
--- a/polygerrit-ui/app/elements/change/gr-reply-dialog/gr-reply-dialog-it_test.js
+++ b/polygerrit-ui/app/elements/change/gr-reply-dialog/gr-reply-dialog-it_test.js
@@ -20,7 +20,6 @@
 import './gr-reply-dialog.js';
 import {dom} from '@polymer/polymer/lib/legacy/polymer.dom.js';
 import {pluginLoader} from '../../shared/gr-js-api-interface/gr-plugin-loader.js';
-import {pluginEndpoints} from '../../shared/gr-js-api-interface/gr-plugin-endpoints.js';
 import {_testOnly_initGerritPluginApi} from '../../shared/gr-js-api-interface/gr-gerrit.js';
 const basicFixture = fixtureFromElement('gr-reply-dialog');
 const pluginApi = _testOnly_initGerritPluginApi();
@@ -126,8 +125,6 @@
     }, null, 'http://test.com/plugins/lgtm.js');
     element = basicFixture.instantiate();
     setupElement(element);
-    sinon.stub(pluginEndpoints, 'importUrl')
-        .callsFake( url => Promise.resolve());
     pluginLoader.loadPlugins([]);
     pluginLoader.awaitPluginsLoaded().then(() => {
       flush(() => {