1 files changed, 0 insertions, 15 deletions
diff --git a/spec/frontend/test_setup.js b/spec/frontend/test_setup.js
index e216f49630f..49eae715a45 100644
--- a/spec/frontend/test_setup.js
+++ b/spec/frontend/test_setup.js
@@ -43,15 +43,6 @@ Object.assign(global, {
   preloadFixtures() {},
 });
 
-Object.assign(global, {
-  MutationObserver() {
-    return {
-      disconnect() {},
-      observe() {},
-    };
-  },
-});
-
 // custom-jquery-matchers was written for an old Jest version, we need to make it compatible
 Object.entries(jqueryMatchers).forEach(([matcherName, matcherFactory]) => {
   // Don't override existing Jest matcher
@@ -69,12 +60,6 @@ expect.extend(customMatchers);
 // Tech debt issue TBD
 testUtilsConfig.logModifiedComponents = false;
 
-// Basic stub for MutationObserver
-global.MutationObserver = () => ({
-  disconnect: () => {},
-  observe: () => {},
-});
-
 Object.assign(global, {
   requestIdleCallback(cb) {
     const start = Date.now();