gnu: Remove rust-versions-3.

* gnu/packages/crates-io.scm (rust-versions-3): Delete variable.

gnu/packages/crates-io.scm

@@ -68098,31 +68098,6 @@ (define-public rust-version-sync-0.6
         ("rust-toml" ,rust-toml-0.4)
         ("rust-url" ,rust-url-1))))))
 
-(define-public rust-versions-3
-  (package
-    (name "rust-versions")
-    (version "3.0.2")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (crate-uri "versions" version))
-       (file-name (string-append name "-" version ".tar.gz"))
-       (sha256
-        (base32 "1ffjw6mbsm3nrgg03b76jfc41lg44yz1pyqmv6zj37q88i6y4wri"))))
-    (build-system cargo-build-system)
-    (arguments
-     `(#:skip-build? #t
-       #:cargo-inputs
-       (("rust-itertools" ,rust-itertools-0.10)
-        ("rust-nom" ,rust-nom-6)
-        ("rust-serde" ,rust-serde-1))))
-    (home-page "https://github.com/fosskers/rs-versions")
-    (synopsis "Library for parsing and comparing software version numbers")
-    (description
-     "This package provides a library for parsing and comparing software
-version numbers.")
-    (license license:expat)))
-
 (define-public rust-void-1
   (package
     (name "rust-void")