Clean up trailing whitespace

Marlin/src/HAL/HAL_STM32F1/spi_pins.h

 /**
  * HAL for stm32duino.com based on Libmaple and compatible (STM32F1)
  */
+
 /**
  * Define SPI Pins: SCK, MISO, MOSI, SS
  *
  * Any PIN can be used for Chip Select (SS)
- * 
+ *
  * SPI1 is enabled by default
  */
 #if ENABLED(ENABLE_SPI3)
   #define MISO_PIN  BOARD_SPI1_MISO_PIN
   #define MOSI_PIN  BOARD_SPI1_MOSI_PIN
   #define SS_PIN    BOARD_SPI1_NSS_PIN
-#endif
+#endif

Marlin/src/lcd/menu/menu_advanced.cpp

 void menu_advanced_settings() {
   #ifdef FILAMENT_RUNOUT_DISTANCE_MM
     lcd_runout_distance_mm = runout.runout_distance();
-  #endif  
+  #endif
   START_MENU();
   MENU_BACK(MSG_CONFIGURATION);
 

Marlin/src/lcd/ultralcd.h

     static void abort_print();
     static void pause_print();
     static void resume_print();
-    
+
     #if HAS_PRINT_PROGRESS
       #if ENABLED(LCD_SET_PROGRESS_MANUALLY)
         static uint8_t progress_bar_percent;

Marlin/src/pins/pins_BIGTREE_SKR_MINI_V1_1.h

 // SD Card
 //
 
-// By default the onboard SD is enabled. 
+// By default the onboard SD is enabled.
 // To disable it and use an external SD (connected to LCD)
 // enable STM32_SD_LCD.
 

Marlin/src/pins/pins_Z_BOLT_X_SERIES.h

  */
 
 /**
- *  Z-Bolt X Series board – based on Arduino Mega2560 
+ *  Z-Bolt X Series board – based on Arduino Mega2560
  */
 
 #if HOTENDS > 4 || E_STEPPERS > 4