Blog's RSS should not be affected by SSO redirectes

RSS feeds should not be redirected to SSO because some RSS readers cannot follow redirects.

This URL has been already fixed : https://community.jboss.org/en/feeds/allcontent?targetUser=ilya_shaikovsky

However Space's URLs are still under SSO gateway mode:
https://community.jboss.org/en/tools/blog/feeds/posts
https://community.jboss.org/community/tools/blog/feeds/posts