Deleted const cast in SHEX macro.

ChangeLog

 2013-02-18  Niels Möller  <nisse@lysator.liu.se>
 
+	* testsuite/testutils.h (SHEX): Deleted const cast.
+
 	* ecc-point.c: New file, struct ecc_point abstraction.
 	* ecc-scalar.c: New file, struct ecc_scalar abstraction.
 	* ecc-random.c (ecc_modq_random, ecc_scalar_random): New file, new

testsuite/testutils.h

@@ -216,7 +216,7 @@ test_ecc_mul_j (unsigned curve, unsigned n, const mp_limb_t *p);
 #define LDATA(x) LLENGTH(x), x
 #define LDUP(x) strlen(x), strdup(x)
 
-#define SHEX(x) ((const struct tstring *) tstring_hex(x))
+#define SHEX(x) (tstring_hex(x))
 #define SDATA(x) ((const struct tstring *)tstring_data(LLENGTH(x), x))
 #define H(x) (SHEX(x)->data)