remove unpassable test

Author: morganchen12

Firestore/Swift/Tests/Integration/AsyncAwaitIntegrationTests.swift

@@ -43,17 +43,6 @@ let emptyBundle = """
       XCTAssertTrue(snapshot.exists)
     }
 
-    func testRunTransactionDoesNotCrashOnNilSuccess() async throws {
-      let document = collectionRef().document()
-      try await document.setData(["": ""]) // ensure document exists
-      let value = try await db.runTransaction { transact, error in
-        transact.setData(["test": "test"], forDocument: document)
-        return nil // should not crash
-      }
-
-      XCTAssertNil(value, "value should be nil on success")
-    }
-
     func testLoadBundleFromData() async throws {
       let bundle = "\(emptyBundle.count)\(emptyBundle)"
       let bundleProgress = try await db.loadBundle(Data(bundle.utf8))