fix issue due to removal of user web server

src/cgi.c

@@ -216,12 +216,17 @@ int ICACHE_FLASH_ATTR cgiMenu(HttpdConnData *connData) {
         "\"Debug log\", \"/log.html\","
         "\"Upgrade Firmware\", \"/flash.html\","
         "\"Web Server\", \"/web-server.html\""
-	"%s"
+#ifdef WEBSERVER
+        "%s"
+#endif
       " ], "
       "\"version\": \"%s\", "
       "\"name\": \"%s\""
     " }",
-  WEB_UserPages(), esp_link_version, name);
+#ifdef WEBSERVER
+  WEB_UserPages(),
+#endif
+  esp_link_version, name);
 
   httpdSend(connData, buff, -1);
   return HTTPD_CGI_DONE;