flake.nix cleanup

* Removed verilator overlay. It's sufficient to add the dependencies to buildInputs
* Remove unneeded comment and code

Author: nbdd0121

flake.nix

@@ -10,7 +10,7 @@
     };
   };
 
-  outputs = all @ {
+  outputs = inputs @ {
     self,
     nixpkgs,
     flake-utils,
@@ -33,12 +33,6 @@
                 packageOverrides = deps.overlay_python;
               };
             })
-            # Add some missing dependencies to nixpkgs#verilator
-            (final: prev: {
-              verilator = prev.verilator.overrideAttrs (oldAttrs: {
-                propagatedBuildInputs = [final.zlib final.libelf];
-              });
-            })
           ];
         };
 
@@ -70,22 +64,11 @@
             gtkwave
             srecord
             openfpgaloader
+            libelf
+            zlib
             # vivado
           ]);
       in {
-        packages.dockertest = pkgs.dockerTools.buildImage {
-          name = "hello-docker";
-          copyToRoot = pkgs.buildEnv {
-            name = "image-root";
-            paths = [
-              pkgs.coreutils
-              pkgs.sl
-            ];
-          };
-          config = {
-            Cmd = ["${pkgs.sl}/bin/sl"];
-          };
-        };
         devShells.default = pkgs.mkShell {
           name = "labenv";
           buildInputs = project_deps;
@@ -154,14 +137,5 @@
     // {
       overlay = final: prev: {};
       overlays = {exampleOverlay = self.overlay;};
-
-      # Utilized by `nix run .#<name>`
-      # apps.x86_64-linux.hello = {
-      #   type = "app";
-      #   program = c-hello.packages.x86_64-linux.hello;
-      # };
-
-      # Utilized by `nix run . -- <args?>`
-      # defaultApp.x86_64-linux = self.apps.x86_64-linux.hello;
     };
 }