Remove stackprof-out
Remove stackprof-out

It was added incorrectly in the following commit.
https://github.com/rubocop/rubocop/commit/ba58efd7a8423ad4067d7c0ab6b74ec29b290552

tejasbubane/rubocop,tejasbubane/rubocop,maxjacobson/rubocop,rrosenblum/rubocop,rrosenblum/rubocop,maxjacobson/rubocop,tejasbubane/rubocop,rrosenblum/rubocop,maxjacobson/rubocop,bbatsov/rubocop,bbatsov/rubocop