There sure is... assuming the relevant pages have THIS_SCRIPT defined.
Just add
PHP Code:
AND THIS_SCRIPT != 'nameofscript'
to the if condition that controls the infobar, in the navbar template.
PHP Code:
if condition="$bbuserinfo[userid] != '0' AND $vboptions[enhancedinfobar]
If they don't have THIS_SCRIPT defined, you would need to go the longer way:
PHP Code:
AND in_array(THIS_SCRIPT, array(showthread,index,forumdisplay))
etc.