Comment 3 for bug 1084311

As discussed offline, the original reason for marking reports as seen after we've confirmed that they have already been seen is to handle cases like the .crash file not existing when a .upload does. Not marking these as seen though does not seem to save us any time though, and we could clean these up in the cron.daily job.

The solution here will be to drop the mark_seen code after already_handled_report.