Oh geez, i totally forgot about my reposnse here, i'll take a look at this for you now..
It's actually looking pretty easy, but it's going to be hard to test since i have no email on a local installation, and of course there's no guarantee i'd get it right first time round..
I'm going to see if i can figure out a way though..
EDIT/UPDATE BELOW:
Take the code here, place it into a file, name it something with a php extesion, and place it in the plugins folder.
For example: post_notify_replace.php
Before you go and activate, look at the various lines of code and comment out the ones you don't want... an example
Line 31:
//$notify_message .= sprintf( __('Author : %1$s (IP: %2$s , %3$s)'), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n";
Try to focus on commenting out just the $notify_message lines..
For the delete it and spam it links, you should comment out lines 61 - 63.
// Example - ignore this line (work around a forum bug that loses tabbing on the first line)
//else
//$notify_message .= sprintf( __('Delete it: %s'), admin_url("comment.php?action=delete&c=$comment_id") ) . "\r\n";
//$notify_message .= sprintf( __('Spam it: %s'), admin_url("comment.php?action=spam&c=$comment_id") ) . "\r\n";
Only downside is you will have problems if another plugin also tries to define that function aswell.
Once you've commented the necessary lines, go ahead and activate it, and that's it... (i could only do limited testing, but it seemed to work just fine)..