By default, WordPress generates many elements that are added to the HTML header. This includes post links and several meta tags. Post links can cause performance issues, and it is good idea to remove them. Here is how.
If you open GD Press Tools Pro Settings panel, go to Content tab, and find Header group of options. You will see options like on the image on the right.
Removing WordPress version meta tag is a good idea from security point of view. RSD and WLW links are safe to remove if you don’t use these services.
As for links, WordPress adds 5 links for each post: current post link, parent link, home link and previous and next links. To generate these links WordPress needs to run many SQL queries and depending on the size of your website this operation can be very slow. While these links can be used by browsers and search engines, they are not as useful as they are slow.