Mask unused var, update (c) comments (#14455)

Marlin/src/HAL/HAL_DUE/InterruptVectors_Due.h

 /**
  * InterruptVectors_Due.h
  *
- * Copyright (c) 2017 Eduardo José Tagle. All right reserved
- *
  * This module relocates the Interrupt vector table to SRAM, allowing new
  * interrupt handlers to be added at runtime. This is required because the
  * Arduino runtime steals interrupt handlers that Marlin MUST use to support

Marlin/src/feature/bedlevel/ubl/ubl_G29.cpp

         planner.synchronize();
         gcode.process_subcommands_now_P(PSTR(Z_PROBE_END_SCRIPT));
       }
+    #else
+      UNUSED(probe_deployed);
     #endif
 
     return;

Marlin/src/feature/dac/stepper_dac.cpp

 
 /**
  * stepper_dac.cpp - To set stepper current via DAC
- *
- * Part of Marlin
- *
- * Copyright (c) 2019 MarlinFirmware
- *
- * Marlin is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * Marlin is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Marlin.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 #include "../../inc/MarlinConfig.h"

Marlin/src/module/stepper_indirection.cpp

  * Stepper motor driver indirection to allow some stepper functions to
  * be done via SPI/I2c instead of direct pin manipulation.
  *
- * Part of Marlin
- *
  * Copyright (c) 2015 Dominik Wenger
  */
 

Marlin/src/module/stepper_indirection.h

 #pragma once
 
 /**
- * stepper_indirection.h - stepper motor driver indirection macros
- * to allow some stepper functions to be done via SPI/I2c instead of direct pin manipulation
- * Part of Marlin
+ * stepper_indirection.h
  *
- * Copyright (c) 2015 Dominik Wenger
- *
- * Marlin is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * at your option) any later version.
- *
- * Marlin is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
+ * Stepper motor driver indirection to allow some stepper functions to
+ * be done via SPI/I2c instead of direct pin manipulation.
  *
- * You should have received a copy of the GNU General Public License
- * along with Marlin.  If not, see <http://www.gnu.org/licenses/>.
+ * Copyright (c) 2015 Dominik Wenger
  */
 
 #include "../inc/MarlinConfig.h"

Marlin/src/pins/pins_BIGTREE_SKR_MINI_V1_1.h

 /**
  * Marlin 3D Printer Firmware
- * Copyright (c) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm

Marlin/src/pins/pins_FYSETC_AIO_II.h

 /**
  * Marlin 3D Printer Firmware
- * Copyright (c) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm

Marlin/src/pins/pins_FYSETC_CHEETAH.h

 /**
  * Marlin 3D Printer Firmware
- * Copyright (c) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm

Marlin/src/pins/pins_JGAURORA_A5S_A1.h

 /**
  * Marlin 3D Printer Firmware
- * Copyright (c) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm

Marlin/src/pins/pins_MKS_ROBIN_MINI.h

 /**
  * Marlin 3D Printer Firmware
- * Copyright (c) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
  *
  * Based on Sprinter and grbl.
  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm