Remove untested, unsupported code for editing reviews against old add-on versions (#6080)
Remove untested, unsupported code for editing reviews against old add-on versions (#6080)


mozilla/addons-frontend,mozilla/addons-frontend,aviarypl/mozilla-l10n-addons-frontend,kumar303/addons-frontend,aviarypl/mozilla-l10n-addons-frontend,kumar303/addons-frontend,tsl143/addons-frontend,mozilla/addons-frontend,aviarypl/mozilla-l10n-addons-frontend,tsl143/addons-frontend,aviarypl/mozilla-l10n-addons-frontend,mozilla/addons-frontend,tsl143/addons-frontend,tsl143/addons-frontend,kumar303/addons-frontend,kumar303/addons-frontend