Delete bundled copy of OpenSSL and replace with README.

openssl/crypto/bn/divtest.c

-#include <openssl/bn.h>
-#include <openssl/rand.h>
-
-static int Rand(n)
-{
-    unsigned char x[2];
-    RAND_pseudo_bytes(x,2);
-    return (x[0] + 2*x[1]);
-}
-
-static void bug(char *m, BIGNUM *a, BIGNUM *b)
-{
-    printf("%s!\na=",m);
-    BN_print_fp(stdout, a);
-    printf("\nb=");
-    BN_print_fp(stdout, b);
-    printf("\n");
-    fflush(stdout);
-}
-
-main()
-{
-    BIGNUM *a=BN_new(), *b=BN_new(), *c=BN_new(), *d=BN_new(),
-        *C=BN_new(), *D=BN_new();
-    BN_RECP_CTX *recp=BN_RECP_CTX_new();
-    BN_CTX *ctx=BN_CTX_new();
-
-    for(;;) {
-        BN_pseudo_rand(a,Rand(),0,0);
-        BN_pseudo_rand(b,Rand(),0,0);
-        if (BN_is_zero(b)) continue;
-
-        BN_RECP_CTX_set(recp,b,ctx);
-        if (BN_div(C,D,a,b,ctx) != 1)
-            bug("BN_div failed",a,b);
-        if (BN_div_recp(c,d,a,recp,ctx) != 1)
-            bug("BN_div_recp failed",a,b);
-        else if (BN_cmp(c,C) != 0 || BN_cmp(c,C) != 0)
-            bug("mismatch",a,b);
-    }
-}