Remove unused define

Firmware/Marlin.h

@@ -220,9 +220,6 @@ void manage_inactivity(bool ignore_stepper_queue=false);
 #endif
 
 
-#define FARM_FILAMENT_COLOR_NONE 99;
-
-
 enum AxisEnum {X_AXIS=0, Y_AXIS=1, Z_AXIS=2, E_AXIS=3, X_HEAD=4, Y_HEAD=5};
 #define X_AXIS_MASK  1
 #define Y_AXIS_MASK  2