change reverted manually

RTC/Core/Src/main.c

@@ -9,7 +9,7 @@
   * <h2><center>&copy; Copyright (c) 2020 STMicroelectronics.
   * All rights reserved.</center></h2>
   *
-  * Hallo, nochmal This software component is licensed by ST under BSD 3-Clause license,
+  * This software component is licensed by ST under BSD 3-Clause license,
   * the "License"; You may not use this file except in compliance with the
   * License. You may obtain a copy of the License at:
   *                        opensource.org/licenses/BSD-3-Clause