You mean you just removed that comma from the code? Or you tried to remove it programmatically using substr or similar?
Looking at it again, it seems like the whole process is unnecessary? Look at this part of the code:
PHP Code:
explode(',', $accepted_offer->accessories)
This is presumably taking a comma separated string of accessories and turning it into an array, which it then loops over to echo out as a comma separated string? I don't know why they would have set it up this way?
It seems to me like you could just echo out $accepted_offer->accessories and not bother with the loop at all. Unless the logic with the "Deleted" title factors into it, but not sure what that's doing anyway.
So either remove the loop and just echo the initial string, or re-read my other two initial suggestions and try those.