Move SD Fat library out of main src

ArduinoAddons/Arduino_1.0.x/libraries/SdFat/SdFile.cpp

@@ -17,9 +17,6 @@
  * along with the Arduino SdFat Library.  If not, see
  * <http://www.gnu.org/licenses/>.
  */
-#include "Marlin.h"
-
-#ifdef SDSUPPORT
 #include "SdFile.h"
 /**  Create a file object and open it in the current working directory.
  *
@@ -90,6 +87,3 @@ void SdFile::writeln_P(PGM_P str) {
   write_P(str);
   write_P(PSTR("\r\n"));
 }
-
-
-#endif