nix: Update patches for 2.0

* Drop stat patch as was accepted upstream.
* NIX_REMOTE scheme is now URI based tcp://host:port

temporary/all-temporary.nix

@@ -7,9 +7,4 @@
 
 self: super: pkgs: with pkgs; {
 
-  # https://github.com/NixOS/nix/pull/1645
-  nixStable = super.nixStable.overrideAttrs
-    ( attrs: { patches = attrs.patches or [] ++ [ ./nix/stat.patch ]; } );
-  nix = super.nix.overrideAttrs
-    ( attrs: { patches = attrs.patches or [] ++ [ ./nix/stat.patch ]; } );
 }