trimmed the code since it seems to be enough to provide TLS 1.3 when Nginx was...

trimmed the code since it seems to be enough to provide TLS 1.3 when Nginx was linked against OpenSSL 1.1.1 at build time

server/plugins-available/nginx_plugin.inc.php

@@ -1622,20 +1622,15 @@ class nginx_plugin {
 		$vhost_data['logging'] = $web_config['logging'];
 
                 // check if OpenSSL and Nginx supports TLS 1.3
-		$nginx_version = $app->system->getnginxversion(true);
-		$openssl_version = $app->system->getopensslversion(true);
-
 		$output = $app->system->exec_safe('nginx -V 2>&1');
 
 		if(preg_match('/built with OpenSSL\s*(\d+)(\.(\d+)(\.(\d+))*)?(\D|$)/i', $output[0], $matches)) {
                         $nginx_openssl_ver = $matches[1] . (isset($matches[3]) ? '.' . $matches[3] : '') . (isset($matches[5]) ? '.' . $matches[5] : '');
 		}
 
-		if(version_compare($app->system->getopensslversion(true), $nginx_openssl_ver, '>=')) {
-			if((version_compare($app->system->getnginxversion(true), '1.13.0', '>=') && version_compare($app->system->getopensslversion(true), '1.1.1', '>='))) {
-				$app->log('Enable TLS 1.3 for: '.$domain, LOGLEVEL_DEBUG);
-				$vhost_data['tls13_available'] = $app->system->getopensslversion(true);
-			}
+		if((version_compare($app->system->getnginxversion(true), '1.13.0', '>=') && version_compare($nginx_openssl_ver, '1.1.1', '>='))) {
+			$app->log('Enable TLS 1.3 for: '.$domain, LOGLEVEL_DEBUG);
+			$vhost_data['tls13_available'] = $nginx_openssl_ver;
 		}
 
 		$tpl->setVar($vhost_data);