Location: Main menu
To remove your comment from the discussion click on the "Remove" button in the Main menu:
The "Remove comment" option can be applied by the time a comment has no replies, votes or effects applied to it by other users. Thus, as soon as a comment gets a reply, vote or some kind of an effect, it can no longer be removed.
If someone has replied, voted or applied an effect to a comment the "Remove" button becomes unavailable.
However, if the replies, votes, likes and effects were applied by the author, the "Remove comment" option remains available.