Fixed phpBB Importer intentionally removes inline attachments

Affected version

K a M a L

I did import a big phpBB forum including tons of tutorials that require inline images to be properly placed , after conversion I found all inline attachments were lost which ruined forum content .. looking at importer code to find the bug , I found it did intentionally strip attach tags .. I was able to fix the issue on my end but it would be nice to fix the importer for future users .