Merge pull request #340 from PavelSindler/MK3_for_merging

removed some serial line error messages

Firmware/Marlin_main.cpp

@@ -5410,7 +5410,6 @@ case 404:  //M404 Enter the nominal filament width (3mm, 1.75mm ) N<3.0> or disp
     #ifdef FILAMENTCHANGEENABLE
     case 600: //Pause for filament change X[pos] Y[pos] Z[relative lift] E[initial retract] L[later retract distance for removal]
     {
-		MYSERIAL.println("!!!!M600!!!!");
 		bool old_fsensor_enabled = fsensor_enabled;
 		fsensor_enabled = false; //temporary solution for unexpected restarting
 

Firmware/fsensor.cpp

@@ -258,7 +258,6 @@ void fsensor_update()
 		}
 		else*/
 		{
-			MYSERIAL.println("fsensor_update - ERROR!!!");
 			fsensor_stop_and_save_print();
 			enquecommand_front_P((PSTR("M600")));
 			fsensor_M600 = true;