Conditions cleanup

Marlin/src/feature/leds/printer_event_leds.cpp

  */
 
 /**
- * printer_event_leds.cpp - LED color changing based on printer status
+ * feature/leds/printer_event_leds.cpp - LED color changing based on printer status
  */
 
 #include "../../inc/MarlinConfigPre.h"

Marlin/src/feature/leds/printer_event_leds.h

 #pragma once
 
 /**
- * printer_event_leds.h - LED color changing based on printer status
+ * feature/leds/printer_event_leds.h - LED color changing based on printer status
  */
 
 #include "leds.h"

Marlin/src/inc/Conditionals_adv.h

 #if ANY(AUTO_BED_LEVELING_UBL, M100_FREE_MEMORY_WATCHER, DEBUG_GCODE_PARSER, TMC_DEBUG, MARLIN_DEV_MODE)
   #define NEED_HEX_PRINT 1
 #endif
+
+// Flag whether least_squares_fit.cpp is used
+#if ANY(AUTO_BED_LEVELING_UBL, AUTO_BED_LEVELING_LINEAR, Z_STEPPER_ALIGN_KNOWN_STEPPER_POSITIONS)
+  #define NEED_LSF 1
+#endif

Marlin/src/inc/Conditionals_post.h

 #if PIN_EXISTS(DIGIPOTSS)
   #define HAS_DIGIPOTSS 1
 #endif
-#if  ANY_PIN(MOTOR_CURRENT_PWM_X, MOTOR_CURRENT_PWM_Y, MOTOR_CURRENT_PWM_XY, MOTOR_CURRENT_PWM_Z, MOTOR_CURRENT_PWM_E)
+#if ANY_PIN(MOTOR_CURRENT_PWM_X, MOTOR_CURRENT_PWM_Y, MOTOR_CURRENT_PWM_XY, MOTOR_CURRENT_PWM_Z, MOTOR_CURRENT_PWM_E)
   #define HAS_MOTOR_CURRENT_PWM 1
 #endif
 

Marlin/src/lcd/menu/menu_ubl.cpp

 
     #if IS_KINEMATIC
       // Index of the mesh point upon entry
-      const uint32_t old_pos_index = grid_index(x_plot, y_plot);
+      const int32_t old_pos_index = grid_index(x_plot, y_plot);
       // Direction from new (unconstrained) encoder value
       const int8_t step_dir = int32_t(ui.encoderPosition) < old_pos_index ? -1 : 1;
     #endif

Marlin/src/libs/least_squares_fit.cpp

 
 #include "../inc/MarlinConfig.h"
 
-#if ANY(AUTO_BED_LEVELING_UBL, AUTO_BED_LEVELING_LINEAR, Z_STEPPER_ALIGN_KNOWN_STEPPER_POSITIONS)
+#if NEED_LSF
 
 #include "least_squares_fit.h"
 
   return 0;
 }
 
-#endif // AUTO_BED_LEVELING_UBL || ENABLED(AUTO_BED_LEVELING_LINEAR)
+#endif // NEED_LSF