CloseSession: Remove unused proto
Initially this RPC was supposed to hand off control to a cat-file being closed to a caller. This decision got reverted and now this RPC can be removed.
Closes #1810 (closed)
Initially this RPC was supposed to hand off control to a cat-file being closed to a caller. This decision got reverted and now this RPC can be removed.
Closes #1810 (closed)