diff --git a/db/db_impl/db_impl_write.cc b/db/db_impl/db_impl_write.cc
index 709c93a5e..51edd14b4 100644
--- a/db/db_impl/db_impl_write.cc
+++ b/db/db_impl/db_impl_write.cc
@@ -1205,18 +1205,8 @@ IOStatus DBImpl::WriteToWAL(const WriteBatch& merged_batch,
     *log_used = logfile_number_;
   }
   total_log_size_ += log_entry.size();
-#if defined(__has_feature)
-#if __has_feature(thread_sanitizer)
   if (with_db_mutex || with_log_mutex) {
-#endif  // __has_feature(thread_sanitizer)
-#endif  // defined(__has_feature)
     assert(alive_log_files_tail_ == alive_log_files_.rbegin());
-#if defined(__has_feature)
-#if __has_feature(thread_sanitizer)
-  }
-#endif  // __has_feature(thread_sanitizer)
-#endif  // defined(__has_feature)
-  if (with_db_mutex || with_log_mutex) {
     assert(alive_log_files_tail_ != alive_log_files_.rend());
   }
   LogFileNumberSize& last_alive_log = *alive_log_files_tail_;