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

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

@@ -681,6 +681,8 @@
         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

@@ -22,23 +22,6 @@
 
 /**
  * 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"