diff --git a/test/functional/services/test_subjects.ts b/test/functional/services/test_subjects.ts
index 78effd17266b0..e5c2e61c48a0b 100644
--- a/test/functional/services/test_subjects.ts
+++ b/test/functional/services/test_subjects.ts
@@ -45,9 +45,6 @@ export function TestSubjectsProvider({ getService }: FtrProviderContext) {
   const WAIT_FOR_EXISTS_TIME = config.get('timeouts.waitForExists');
 
   class TestSubjects {
-    findByCssSelector(arg0: string) {
-      throw new Error('Method not implemented.');
-    }
     public async exists(selector: string, options: ExistsOptions = {}): Promise<boolean> {
       const { timeout = WAIT_FOR_EXISTS_TIME, allowHidden = false } = options;