Chore: Remove CreateUserForTests() (#64125)

* Chore: Remove CreateUserForTests

* Apply suggestion from code review

pkg/tests/api/plugins/api_plugins_test.go

@@ -129,7 +129,7 @@ func createUser(t *testing.T, store *sqlstore.SQLStore, cmd user.CreateUserComma
 	usrSvc, err := userimpl.ProvideService(store, orgService, store.Cfg, nil, nil, quotaService, supportbundlestest.NewFakeBundleService())
 	require.NoError(t, err)
 
-	_, err = usrSvc.CreateUserForTests(context.Background(), &cmd)
+	_, err = usrSvc.Create(context.Background(), &cmd)
 	require.NoError(t, err)
 }