audio: revert invalid markings

Revert invalid markings added to AOSP files.

CRs-Fixed: 2380934
Change-Id: I5e729616dccb5e04e870e26462f822e16433879d
diff --git a/visualizer/offload_visualizer.c b/visualizer/offload_visualizer.c
index f268ab8..678b73a 100644
--- a/visualizer/offload_visualizer.c
+++ b/visualizer/offload_visualizer.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2013, 2019 The Android Open Source Project
+ * Copyright (C) 2013 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.