root: delete editor temporary
root: delete editor temporary

Sorry

Change-Id: I6c4db491a13be7fc7204bf95d4181c1cde667dc5
Reviewed-on: https://upspin-review.googlesource.com/7302
Reviewed-by: Andrew Gerrand <395a7d33bec8475c9b83b7d440f141bcbd994aa5@google.com>

upspin/upspin,upspin/upspin