gnu: Remove rust-cargon-0.0.

* gnu/packages/crates-io.scm (rust-cargon-0.0): Delete variable.

gnu/packages/crates-io.scm

@@ -9965,29 +9965,6 @@ supported by Cargo.")
     (inputs '())
     (native-inputs '())))
 
-(define-public rust-cargon-0.0
-  (package
-    (name "rust-cargon")
-    (version "0.0.1")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (crate-uri "cargon" version))
-        (file-name (string-append name "-" version ".tar.gz"))
-        (sha256
-         (base32
-          "1cszlab7jk736p0lb50ag4l9nv72m7j41bwrmygl0lr4iz0350w2"))))
-    (build-system cargo-build-system)
-    (arguments
-     `(#:cargo-inputs
-       (("rust-gcc" ,rust-gcc-0.3))))
-    (home-page "https://github.com/bryant/argon2rs")
-    (synopsis "Thin wrapper around the Argon2 C library")
-    (description
-     "This package provides a thin wrapper around the Argon2 C library.  It is
-used in argon2rs' bench suite.")
-    (license license:wtfpl2)))
-
 (define-public rust-cassowary-0.3
   (package
     (name "rust-cassowary")