Cleanup spaces and comments in configs and conditionals

Marlin/Conditionals.h

 
   /**
    * AUTOSET LOCATIONS OF LIMIT SWITCHES
-   * Added by ZetaPhoenix 09-15-2012
    */
   #ifdef MANUAL_HOME_POSITIONS  // Use manual limit switch locations
     #define X_HOME_POS MANUAL_X_HOME_POS

Marlin/example_configurations/adafruit/ST7565/Configuration.h

 // shouldn't use bed PID until someone else verifies your hardware works.
 // If this is enabled, find your own PID constants below.
 //#define PIDTEMPBED
-//
+
 //#define BED_LIMIT_SWITCHING
 
 // This sets the max power delivered to the bed, and replaces the HEATER_BED_DUTY_CYCLE_DIVIDER option.
   const bool FIL_RUNOUT_INVERTING = true;  // Should be uncommented and true or false should assigned
   #define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
   #define FILAMENT_RUNOUT_SCRIPT "M600"
-#endif 
+#endif
 
 //===========================================================================
 //=========================== Manual Bed Leveling ===========================