Remove URLs from forum post?

Is there a way to remove URL links in our forum posts once its resolved? The forum posts are popping up on my google searches (including test sites and images)

Posts found here:
http://wordpress.org/support/topic/theme-not-picking-up-stylesheet?replies=7

http://wordpress.org/support/topic/changed-domain-pointers-wp-pages-lost?replies=6

Thanks!