MyBB Community Forums

(using MyBB ver. 1.6)
I'm wanting to remove some specific things from my forums, but I can't seem to find the template page where they would be located. Could anyone point me in the right direction?

Specifically I want to remove the icons the user can choose to appear beside the name of their thread while posting, the hot thread/new posts icons, and I want to remove the option to include a signature in posts.

I've attached screenshots showing what I mean. I'm sorry if I'm not being clear. The reason I want to remove this stuff is because I'm putting up a text based roleplay site and this would just distract from the purpose of the site.

Thank you in advance for your help.

EDIT: AJS has a much better solution below

You don't need to edit the templates to turn off post icons, it's a setting per forum. To turn it off for all forums just run this in phpMyAdmin:

UPDATE `mybb_forums` SET `allowpicons` = '0'