Remove checks for nixComponents

We are currently building Nix twice in the main GHA CI job, which is
frequently timing out. Obviously, we want this to be fast, so only do
the main build for now.

flake.nix

@@ -189,6 +189,7 @@
         # system, we should reenable this.
         #perlBindings = self.hydraJobs.perlBindings.${system};
       }
+      /*
       # Add "passthru" tests
       // flatMapAttrs ({
           "" = nixpkgsFor.${system}.native;
@@ -210,6 +211,7 @@
             "${nixpkgsPrefix}nix-functional-tests" = nixpkgs.nixComponents.nix-functional-tests;
           }
         )
+      */
       // devFlake.checks.${system} or {}
       );