Clean up trailing whitespace

Marlin/src/Marlin.cpp

...onfig/examples/delta/FLSUN/auto_calibrate/Configuration.h

...in/src/config/examples/delta/FLSUN/kossel/Configuration.h

...c/config/examples/delta/FLSUN/kossel_mini/Configuration.h

.../src/config/examples/delta/Hatchbox_Alpha/Configuration.h

Marlin/src/config/examples/delta/generic/Configuration.h

Marlin/src/config/examples/delta/kossel_mini/Configuration.h

Marlin/src/config/examples/delta/kossel_xl/Configuration.h

Marlin/src/gcode/gcode.cpp

Marlin/src/gcode/gcode.h

Marlin/src/pins/pins_AZTEEG_X5_MINI_WIFI.h