gnu: rust-cfg-if-0.1: Don't hide package.

* gnu/packages/crates-io.scm (rust-cfg-if-0.1)[arguments]: Skip build.
Add rust-compiler-builtins-0.1, rust-rustc-std-workspace-core-1.0 to
cargo-inputs.
[properties]: Remove field.

gnu/packages/crates-io.scm

@@ -1175,12 +1175,16 @@ (define-public rust-cfg-if-0.1
          (base32
           "08h80ihs74jcyp24cd75wwabygbbdgl05k6p5dmq8akbr78vv1a7"))))
     (build-system cargo-build-system)
+    (arguments
+     `(#:skip-build? #t
+       #:cargo-inputs
+       (("rust-compiler-builtins" ,rust-compiler-builtins-0.1)
+        ("rust-rustc-std-workspace-core" ,rust-rustc-std-workspace-core-1.0))))
     (home-page "https://github.com/alexcrichton/cfg-if")
     (synopsis "Define an item depending on parameters")
     (description "This package provides a macro to ergonomically define an item
 depending on a large number of #[cfg] parameters.  Structured like an
 @code{if-else} chain, the first matching branch is the item that gets emitted.")
-    (properties '((hidden? . #t)))
     (license (list license:asl2.0
                    license:expat))))