[Pushed] Remove attachment Text BBcode into Post

[DiegoPino]

Hi,

Thank you for your report. We have pushed this issue to our Github repository for further analysis where you can track our commits and progress with fixing this bug. Discussions regarding this bug may also take place there too.

Follow this link to visit the issue on Github: https://github.com/mybb/mybb/issues/3644

Thanks for contributing to MyBB!

Regards,
The MyBB Group

Thank you so much Effone and the Development Team of MyBB for the Support!  

Muchas Gracias!