fix(public-flake-module): export checks/packages once

Author: Pacman99

nix/public-flake-module.nix

@@ -310,13 +310,6 @@ ourArgs:
                 };
               })
             ))
-            {
-              crate2nix.packages =
-                lib.mapAttrs (_: lib.getAttr "build") cfg.cargoNix.workspaceMembers;
-              crate2nix.checks =
-                lib.mapAttrs (_: m: m.build.override { runTests = true; }) cfg.cargoNix.workspaceMembers;
-              crate2nix.crateOverrides = ourArgs.self.tools.${pkgs.system}.crateOverrides;
-            }
             (lib.mkIf cfg.exportAll {
               inherit (cfg) packages;
             })