Remove offchain workers ownership.
/primitives/sr-sandbox/ @pepyakin
/primitives/core/src/sandbox.rs @pepyakin
-# Offchain
-/client/offchain/ @tomusdrw
-/primitives/offchain/ @tomusdrw
-
# GRANDPA, BABE, consensus stuff
/frame/babe/ @andresilva
/frame/grandpa/ @andresilva
