comment out un-needed header files

mpn/generic/dc_divappr_q_n.c

@@ -37,10 +37,10 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "mpir.h"
 #include "gmp-impl.h"
 #include "longlong.h"
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <math.h>
+//#include <stdlib.h>
+//#include <stdio.h>
+//#include <string.h>
+//#include <math.h>
 
 /*
   Computes an approximation to N/D, where N = {np,2n}, D = {dp,n}.

mpn/generic/tdiv_q.c

@@ -25,8 +25,8 @@ along with the GNU MP Library.  If not, see http://www.gnu.org/licenses/.  */
 #include "gmp-impl.h"
 #include "longlong.h"
 
-#include <stdio.h> 
-#include <stdlib.h>
+//#include <stdio.h> 
+//#include <stdlib.h>
 
 /* The DIV_QR_THRESHOLDs should be replaced with DIV_Q_THRESHOLDs */