If you want to just remove the link:
Go to: Navigation/Breadcrumb Templates / navbar
Find and then remove the code in green or you could just easily place the <!-- & --> so you don't have to remove the code.
Code:
<if condition="$show['popups']">
<if condition="$show['searchbuttons']">
<if condition="$show['member']">
<!-- <td class="vbmenu_control"><a href="search.php?$session[sessionurl]do=getnew" accesskey="2">$vbphrase[new_posts_nav]</a></td>
<else />
<td class="vbmenu_control"><a href="search.php?$session[sessionurl]do=getdaily" accesskey="2">$vbphrase[todays_posts]</a></td>
</if> -->
<td id="navbar_search" class="vbmenu_control"><a href="search.php$session[sessionurl_q]" accesskey="4" rel="nofollow">$vbphrase[search]</a> <script type="text/javascript"> vbmenu_register("navbar_search"); </script></td>
</if>
Hope I explained that right and it helps

Thankyou to LionDen for the info.