Update flake lock

Author: oxalica

flake.lock

@@ -5,7 +5,6 @@ rec {
     flake-utils.url = "github:numtide/flake-utils";
     nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
     rust-overlay.url = "github:oxalica/rust-overlay";
-    rust-overlay.inputs.flake-utils.follows = "flake-utils";
     rust-overlay.inputs.nixpkgs.follows = "nixpkgs";
   };