nix repl: Stop the progress bar
nix repl: Stop the progress bar

The repl was broken since c3769c68465bae971ab6bb48cfcdea85b61ea83a. In
general, the progress bar is incompatible with the repl.

NixOS/nix,NixOS/nix,NixOS/nix,NixOS/nix,NixOS/nix