IDEX Improvements (#11848)

Marlin/src/module/stepper.cpp

@@ -251,7 +251,7 @@ int8_t Stepper::count_direction[NUM_AXIS] = { 0, 0, 0, 0 };
   #define X_APPLY_DIR(v,ALWAYS) \
     if (extruder_duplication_enabled || ALWAYS) { \
       X_DIR_WRITE(v); \
-      X2_DIR_WRITE(bool(v)); \
+      X2_DIR_WRITE(v); \
     } \
     else { \
       if (movement_extruder()) X2_DIR_WRITE(v); else X_DIR_WRITE(v); \