Removed duplicate 'powered by Disqus' link.
Removed duplicate 'powered by Disqus' link.

This also fixes an issue during page load with Disqus comments on them, `comments powered by Disqus` displayed then got pushed down.

keepcosmos/keepcosmos.github.io,ummels/ummels.de,keepcosmos/keepcosmos.github.io,keepcosmos/keepcosmos.github.io,ummels/ummels.de,gyandeeps/gyandeeps.github.io,gyandeeps/gyandeeps.github.io,ummels/ummels.de,gyandeeps/gyandeeps.github.io,ummels/ummels.de