gnu: Remove rust-assert-impl-0.1.

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

gnu/packages/crates-io.scm

@@ -4230,26 +4230,6 @@ assertions on the result of your program's run.")
      "This crate provides file system fixtures and assertions for testing.")
     (license (list license:expat license:asl2.0))))
 
-(define-public rust-assert-impl-0.1
-  (package
-    (name "rust-assert-impl")
-    (version "0.1.3")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (crate-uri "assert-impl" version))
-       (file-name (string-append name "-" version ".tar.gz"))
-       (sha256
-        (base32 "17jvig9rwdc1sf1j5q8q9k69njg3k8g7x7g6wcb711hcvq9l6in3"))))
-    (build-system cargo-build-system)
-    (arguments `(#:skip-build? #t))
-    (home-page "https://github.com/upsuper/assert-impl")
-    (synopsis "Macro for static assert that types implement a trait or not")
-    (description
-     "This carte provides a macro for static assert that types implement
-a trait or not.")
-    (license license:expat)))
-
 (define-public rust-assert-json-diff-1
   (package
     (name "rust-assert-json-diff")