gnu: Remove rust-model-0.1.

* gnu/packages/crates-io.scm (rust-model-0.1): Delete variable.

gnu/packages/crates-io.scm

@@ -36707,32 +36707,6 @@ IOCP and Async I/O abstractions.")
 select the mock struct at compile time.  Used with the Mockall crate.")
     (license (list license:expat license:asl2.0))))
 
-(define-public rust-model-0.1
-  (package
-    (name "rust-model")
-    (version "0.1.2")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (crate-uri "model" version))
-       (file-name
-        (string-append name "-" version ".tar.gz"))
-       (sha256
-        (base32
-         "0kx6hy5i1fn2qs4x6hpng9jixpm68g83vm24z8bqqscr317yinb6"))))
-    (build-system cargo-build-system)
-    (arguments
-     `(#:skip-build? #t
-       #:cargo-inputs
-       (("rust-permutohedron" ,rust-permutohedron-0.2)
-        ("rust-proptest" ,rust-proptest-0.9))))
-    (home-page "https://github.com/spacejam/model")
-    (synopsis "Model-based testing for data structures")
-    (description
-     "Model-based testing for data structures, with linearizability
-checking.")
-    (license (list license:expat license:asl2.0))))
-
 (define-public rust-modifier-0.1
   (package
     (name "rust-modifier")