Fix compile error in ROCKSDB_LITE

util/env_posix.cc

@@ -1667,14 +1667,18 @@ class PosixEnv : public Env {
       BGThreadMetadata* meta = reinterpret_cast<BGThreadMetadata*>(arg);
       size_t thread_id = meta->thread_id_;
       ThreadPool* tp = meta->thread_pool_;
+#if ROCKSDB_USING_THREAD_STATUS
       // for thread-status
       thread_local_status.SetThreadType(
           (tp->GetThreadPriority() == Env::Priority::HIGH ?
               ThreadStatus::ThreadType::ROCKSDB_HIGH_PRIORITY :
               ThreadStatus::ThreadType::ROCKSDB_LOW_PRIORITY));
+#endif
       delete meta;
       tp->BGThread(thread_id);
+#if ROCKSDB_USING_THREAD_STATUS
       thread_local_status.UnregisterThread();
+#endif
       return nullptr;
     }