Drastically simplify changes to verify.go#1

aarongable wants to merge 25 commits into

trailofbits:patch/issues-8-9-fresh-account-authtrailofbits/boulder:patch/issues-8-9-fresh-account-authfrom

letsencrypt:get-only-account-cacheletsencrypt/boulder:get-only-account-cacheCopy head branch name to clipboard