ssh: use upstream SSH_OPENSSL_VERSION macro

With the upgrade to OpenSSH 6.7p1 in commit a0ee8cc6 we replaced
WITH_OPENSSL ifdefs with an OPENSSL_VERSION macro, later changing it
to OPENSSL_VERSION_STRING.

A few years later OpenSSH made an equivalent change (with a different
macro name), in commit 4d94b031ff88.  Switch to the macro name they
chose.

MFC after:	1 week
Sponsored by:	The FreeBSD Foundation

crypto/openssh/ssh.c

@@ -876,10 +876,10 @@ main(int ac, char **av)
 			    *options.version_addendum != '\0')
 				fprintf(stderr, "%s %s, %s\n", SSH_RELEASE,
 				    options.version_addendum,
-				    OPENSSL_VERSION_STRING);
+				    SSH_OPENSSL_VERSION);
 			else
 				fprintf(stderr, "%s, %s\n", SSH_RELEASE,
-				    OPENSSL_VERSION_STRING);
+				    SSH_OPENSSL_VERSION);
 			if (opt == 'V')
 				exit(0);
 			break;
@@ -1147,7 +1147,7 @@ main(int ac, char **av)
 
 	if (debug_flag)
 		/* version_addendum is always NULL at this point */
-		logit("%s, %s", SSH_RELEASE, OPENSSL_VERSION_STRING);
+		logit("%s, %s", SSH_RELEASE, SSH_OPENSSL_VERSION);
 
 	/* Parse the configuration files */
 	process_config_files(host_arg, pw, 0, &want_final_pass);

crypto/openssh/sshd.c

@@ -923,10 +923,10 @@ usage(void)
 	    *options.version_addendum != '\0')
 		fprintf(stderr, "%s %s, %s\n",
 		    SSH_RELEASE,
-		    options.version_addendum, OPENSSL_VERSION_STRING);
+		    options.version_addendum, SSH_OPENSSL_VERSION);
 	else
 		fprintf(stderr, "%s, %s\n",
-		    SSH_RELEASE, OPENSSL_VERSION_STRING);
+		    SSH_RELEASE, SSH_OPENSSL_VERSION);
 	fprintf(stderr,
 "usage: sshd [-46DdeiqTt] [-C connection_spec] [-c host_cert_file]\n"
 "            [-E log_file] [-f config_file] [-g login_grace_time]\n"

crypto/openssh/version.h

@@ -6,9 +6,3 @@
 #define SSH_RELEASE	SSH_VERSION SSH_PORTABLE
 
 #define SSH_VERSION_FREEBSD	"FreeBSD-20220415"
-
-#ifdef WITH_OPENSSL
-#define OPENSSL_VERSION_STRING	OpenSSL_version(OPENSSL_VERSION)
-#else
-#define OPENSSL_VERSION_STRING	"without OpenSSL"
-#endif