#ifdef tweaks

Marlin/Marlin.ino

 
 #if ENABLED(HAVE_TMCDRIVER)
   #include <SPI.h>
-  #if defined(STM32F7)
+  #ifdef STM32F7
     #include "src/HAL/HAL_STM32F7/TMC2660.h"
   #else
     #include <TMC26XStepper.h>

Marlin/src/HAL/HAL_LPC1768/u8g_com_HAL_LPC1768_sw_spi.cpp

 
 */
 
-#if defined (TARGET_LPC1768)
+#ifdef TARGET_LPC1768
 
 #include <U8glib.h>
 #include "SoftwareSPI.h"
   return 1;
 }
 
-#endif  // TARGET_LPC1768
+#endif // TARGET_LPC1768

Marlin/src/libs/softspi.h

 || defined(__AVR_ATmega324__)\
 || defined(__AVR_ATmega16__)
 
-#if defined(VARIANT_MIGHTY)
+#ifdef VARIANT_MIGHTY
 // Mighty Layout
 static const pin_map_t pinMap[] = {
   {&DDRB, &PINB, &PORTB, 0},  // B0  0