default 404 includes link to external site: google search

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I'd like to be able to disable the default 404 template 'Other Things to Try' section all together (or customize), because it hard-codes a link back to external site: google search. The ask bot service i'm working on lives within a vpn intranet, eg, google doesn't index the site anyway.

Obviously, it's possible to simply update the template code manually, which i've done, but perhaps it could be made possible to diable/enable this 'feature' (customize the 'Other Things to Try' section of 404) like is possible with the header/footer settings options?