Hide meta who hook will allows to hide question who meta from everywhere or for the template you specify. For more details read usage in cooment.

q2am-hook-hide-meta-who.php

<?php
/*
 * hook: 	hide meta who from questions
 *
 * hook by:	Q2A Market
 * author: 	Jatin Soni
 * url:		http://www.q2amarket.com
 * 
 * usage:
 * Place below code into your theme or plugin layer
 * if you want to hide from everywhere than just use
 * 
 * function post_meta_who($post, $class){}
 * 
 * if you want to display on particular template
 * than load base method conditionally. In this case
 * I have set for 'question' (question view page)
 *
 * Disclaimer:
 * This program is distributed in the hope that
 * it will be useful, but WITHOUT ANY WARRANTY;
 * without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE.
 * 
 * See the GNU General Public License for more details.
 */

function post_meta_who($post, $class)
{
	if($this->template == 'question')
		qa_html_theme_base::post_meta_who($post, $class);
}

// end of the hook