Move SD Fat library out of main src

ArduinoAddons/Arduino_1.0.x/libraries/SdFat/SdFatStructs.h

@@ -17,9 +17,6 @@
  * along with the Arduino SdFat Library.  If not, see
  * <http://www.gnu.org/licenses/>.
  */
-#include "Marlin.h"
-#ifdef SDSUPPORT
-
 #ifndef SdFatStructs_h
 #define SdFatStructs_h
 
@@ -641,6 +638,3 @@ static inline uint8_t DIR_IS_FILE_OR_SUBDIR(const dir_t* dir) {
   return (dir->attributes & DIR_ATT_VOLUME_ID) == 0;
 }
 #endif  // SdFatStructs_h
-
-
-#endif