Configure: remove superfluous 0x

The number is taken from the OPENSSL_VERSION_NUMBER which is already
in the hex form.

CLA: trivial

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1706)
diff --git a/Configure b/Configure
index 38637fb..f451f94 100755
--- a/Configure
+++ b/Configure
@@ -290,7 +290,7 @@
 }
 
 
-print "Configuring OpenSSL version $config{version} (0x$config{version_num})\n";
+print "Configuring OpenSSL version $config{version} ($config{version_num})\n";
 
 $config{prefix}="";
 $config{openssldir}="";