Get rid of another cast.

crypto/md32_common.h

diff --git a/crypto/md32_common.h b/crypto/md32_common.h
index d637052..dc464ea 100644
--- a/crypto/md32_common.h
+++ b/crypto/md32_common.h
@@ -524,7 +524,7 @@
 #endif
 #endif
 #if defined(HASH_BLOCK_DATA_ORDER)
-	HASH_BLOCK_DATA_ORDER (c,(const unsigned char *)data,1);
+	HASH_BLOCK_DATA_ORDER (c,data,1);
 #endif
 	}