MINOR Disabled opensearch descriptions until they're actually implemented
MINOR Disabled opensearch descriptions until they're actually implemented

mandrew/silverstripe-globaltoolbar,mandrew/silverstripe-globaltoolbar,silverstripe/silverstripe-globaltoolbar,silverstripe/silverstripe-globaltoolbar,mandrew/silverstripe-globaltoolbar,mandrew/silverstripe-globaltoolbar,silverstripe/silverstripe-globaltoolbar,silverstripe/silverstripe-globaltoolbar