Remove unnecessary pin initialization in stepper.cpp

(duplicates initialization in Marlin_main.cpp)

Marlin/stepper.cpp

 static volatile bool endstop_x_hit=false;
 static volatile bool endstop_y_hit=false;
 static volatile bool endstop_z_hit=false;
-#ifdef ABORT_ON_ENDSTOP_HIT_FEATURE_ENABLED
-bool abort_on_endstop_hit = false;
-#endif
+#ifdef ABORT_ON_ENDSTOP_HIT_FEATURE_ENABLED
+bool abort_on_endstop_hit = false;
+#endif
 
 static bool old_x_min_endstop=false;
 static bool old_x_max_endstop=false;
      SERIAL_ECHOPAIR(" Z:",(float)endstops_trigsteps[Z_AXIS]/axis_steps_per_unit[Z_AXIS]);
      LCD_MESSAGEPGM(MSG_ENDSTOPS_HIT "Z");
    }
-   SERIAL_ECHOLN("");
+   SERIAL_ECHOLN("");
    endstop_x_hit=false;
    endstop_y_hit=false;
-   endstop_z_hit=false;
-#ifdef ABORT_ON_ENDSTOP_HIT_FEATURE_ENABLED
-   if (abort_on_endstop_hit)
-   {
+   endstop_z_hit=false;
+#ifdef ABORT_ON_ENDSTOP_HIT_FEATURE_ENABLED
+   if (abort_on_endstop_hit)
+   {
      card.sdprinting = false;
      card.closefile();
-     quickStop();
+     quickStop();
      setTargetHotend0(0);
      setTargetHotend1(0);
      setTargetHotend2(0);
-   }
+   }
 #endif
  }
 }
     disable_e2();
   #endif  
 
-  #ifdef CONTROLLERFAN_PIN
-    SET_OUTPUT(CONTROLLERFAN_PIN); //Set pin used for driver cooling fan
-  #endif
-  
   // waveform generation = 0100 = CTC
   TCCR1B &= ~(1<<WGM13);
   TCCR1B |=  (1<<WGM12);