feat: abandon the use of the git information in the repo itself

flake.nix

@@ -19,8 +19,6 @@
         packages = with pkgs.python3Packages; [
           mkdocs
           mkdocs-material
-          mkdocs-git-authors-plugin
-          mkdocs-git-revision-date-localized-plugin
         ];
       in {
         formatter = alejandra.defaultPackage.${system};
@@ -28,7 +26,7 @@
           name = "skynet-wiki";
           src = self;
           buildInputs = packages;
-          buildPhase = "tar -zxf _git.tar.gz && mkdocs build";
+          buildPhase = "mkdocs build";
           installPhase = "mkdir -p $out; cp -R site/* $out;";
         };