chore: update list experiment test cases

Author: Namyalg

src/remoteconfig/listexperiments.spec.ts

@@ -175,23 +175,6 @@ describe("Remote Config Experiment List", () => {
         `Failed to get Remote Config experiments for project ${PROJECT_ID}.`,
       );
     });
-
-    it("should reject with a FirebaseError if the API call returns a 500 error.", async () => {
-      const listExperimentOptions: ListExperimentOptions = {
-        pageSize: DEFAULT_PAGE_SIZE,
-      };
-      nock(remoteConfigApiOrigin())
-        .get(`/v1/projects/${PROJECT_ID}/namespaces/${NAMESPACE_FIREBASE}/experiments`)
-        .query({ page_size: DEFAULT_PAGE_SIZE })
-        .reply(500, { error: { message: "Internal Server Error" } });
-
-      await expect(
-        listExperiments(PROJECT_ID, NAMESPACE_FIREBASE, listExperimentOptions),
-      ).to.eventually.be.rejectedWith(
-        FirebaseError,
-        `Failed to get Remote Config experiments for project ${PROJECT_ID}. Error: Internal Server Error`,
-      );
-    });
   });
 
   describe("parseExperimentList", () => {