* temp: remove false positives on safe sessions middleware
This is a temporary fix to deal with false positives in the system due
to the masquerading feature. Long term we may not want to rely on
knowing about how masquerding works in the safe sessions middleware and
instead manage masquerding of the requset user in some other way.
Co-authored-by: Robert Raposa <rraposa@edx.org>
c67c401f89