Drop "optimisation" that breaks the build with clang, modern GCC and

clang versions are smart enough for this anyway.

net/entropy/distinfo

@@ -1,4 +1,4 @@
-$NetBSD: distinfo,v 1.12 2015/11/04 00:34:59 agc Exp $
+$NetBSD: distinfo,v 1.13 2020/05/22 01:23:41 joerg Exp $
 
 SHA1 (entropy_rsa-0.9.1-439.tgz) = 264ffdfe976c154412abd4171fa8525c40414bbc
 RMD160 (entropy_rsa-0.9.1-439.tgz) = 3548ecb8374b512a365dfd388699ada6596d48f3
@@ -8,3 +8,4 @@ SHA1 (patch-aa) = f094ead71b69995d6a8a48ac954bddac22339982
 SHA1 (patch-ab) = 6e5ad3221243cb942b265d664e9833596c7f24c3
 SHA1 (patch-ac) = 356895fa6e9309ac1479ca52a1ec3164f6a1613a
 SHA1 (patch-ad) = 1ccc064bab8aa9d5d87a1f2b063a458a22bd36af
+SHA1 (patch-src_bignum.c) = 85f57372c8b7044dee5f6744c5ffe6fc99669c68

net/entropy/patches/patch-src_bignum.c

@@ -0,0 +1,35 @@
+$NetBSD: patch-src_bignum.c,v 1.1 2020/05/22 01:23:42 joerg Exp $
+
+Don't play with assembler, the compiler knows how to do it anyway.
+
+--- src/bignum.c.orig	2020-05-22 00:32:45.737382942 +0000
++++ src/bignum.c
+@@ -703,20 +703,6 @@ limb_t bn_mul_limb(limb_t w[], limb_t u[
+  */
+ limb_t sl_div(limb_t *q, limb_t *r, limb_t u[2], limb_t v)
+ {
+-#if	ASM_X86
+-	limb_t qq;
+-	limb_t rr;
+-
+-	if (0 == v)
+-		/* division by zero */
+-		return LIMBMASK;
+-	asm volatile(
+-		"divl	%4"
+-		: "=a"(qq), "=d"(rr)
+-		: "a"(u[0]), "d"(u[1]), "g"(v));
+-	*q = qq;
+-	*r = rr;
+-#else
+ 	dlimb_t dd;
+ 
+ 	if (0 == v)
+@@ -725,7 +711,6 @@ limb_t sl_div(limb_t *q, limb_t *r, limb
+ 	dd = ((dlimb_t)u[1] << LIMBBITS) | u[0];
+ 	*q = dd / v;
+ 	*r = dd % v;
+-#endif
+ 	return 0;
+ }
+