Mich dünkt wenn man das im ACP deaktiviert wird es nicht mehr angezeigt.
Ansonsten Template Memberinfo das raus kommentieren
<legend>$vbphrase[instant_messaging]</legend>
<table cellpadding="0" cellspacing="$stylevar[formspacer]" border="0">
<if condition="$show['textimicons']">
<if condition="$userinfo['showicq']">
<tr>
<td>$vbphrase[icq]</td>
<td>$userinfo[icq]</td>
</tr>
</if>
<if condition="$userinfo['showaim']">
<tr>
<td>$vbphrase[aim]</td>
<td>$userinfo[aim]</td>
</tr>
</if>
<if condition="$userinfo['showmsn']">
<tr>
<td>$vbphrase[msn]</td>
<td>$userinfo[msn]</td>
</tr>
</if>
<if condition="$userinfo['showyahoo']">
<tr>
<td>$vbphrase[yahoo]</td>
<td>$userinfo[yahoo]</td>
</tr>
</if>
<if condition="$userinfo['skype']">
<tr>
<td>$vbphrase[skype]</td>
<td>$userinfo[skype]</td>
</tr>
</if>
<else />
<if condition="$userinfo['showicq']">
<tr>
<td>$userinfo[icqicon]</td>
<td><a href="#" dir="ltr" onclick="imwindow('icq', '$userinfo[userid]', 500, 450); return false;">$userinfo[icq]</a></td>
</tr>
</if>
<if condition="$userinfo['showaim']">
<tr>
<td>$userinfo[aimicon]</td>
<td><a href="#" dir="ltr" onclick="imwindow('aim', '$userinfo[userid]', 400, 200); return false;">$userinfo[aim]</a></td>
</tr>
</if>
<if condition="$userinfo['showmsn']">
<tr>
<td>$userinfo[msnicon]</td>
<td><a href="#" dir="ltr" onclick="imwindow('msn', '$userinfo[userid]', 400, 200); return false;">$userinfo[msn]</a></td>
</tr>
</if>
<if condition="$userinfo['showyahoo']">
<tr>
<td>$userinfo[yahooicon]</td>
<td><a href="#" dir="ltr" onclick="imwindow('yahoo', '$userinfo[userid]', 400, 200); return false;">$userinfo[yahoo]</a></td>
</tr>
</if>
<if condition="$userinfo['showskype']">
<tr>
<td>$userinfo[skypeicon]</td>
<td><a href="#" dir="ltr" onclick="imwindow('skype', '$userinfo[userid]', 400, 285); return false;">$userinfo[skype]</a></td>
</tr>
</if>
</if>
$template_hook[memberinfo_iminfo]
</table>
</fieldset>
</if>
nicht getestet