support /delete?recanonicalize=0
support /delete?recanonicalize=0

to delete by urlkey+timestamp (instead of the default of canonicalizing
the originalUrl field and using that as the urlkey)

nla/tinycdxserver,nla/outbackcdx,nla/outbackcdx,nla/outbackcdx,nla/tinycdxserver,nla/tinycdxserver,nla/tinycdxserver,nla/outbackcdx