Remove trailing spaces, old comment

Marlin/src/module/motion.cpp

@@ -287,7 +287,6 @@ void buffer_line_to_destination(const float fr_mm_s) {
 
 /**
  *  Plan a move to (X, Y, Z) and set the current_position
- *  The final current_position may not be the one that was requested
  */
 void do_blocking_move_to(const float rx, const float ry, const float rz, const float &fr_mm_s/*=0.0*/) {
   const float old_feedrate_mm_s = feedrate_mm_s;