Hello,
I created a bulk update to add a comment to all issues in "To Do" status in my project. The comment triggered a process that copied the value from the Story Points field to the Original Story Points field, though I'm not sure exactly how it worked. The comment was added to 315 issues. Here's the comment I added:
Copying points to "original story points"
Now, I'd like to delete this comment from all the issues. I've searched online and in the forum but couldn't find a solution that I understood. I have access to ScriptRunner but am unfamiliar with how to use it.
It's not critical if I can't delete the comments, but I'd prefer to. 
Any advice would be appreciated!
All the best,
-CLK