gnu: Remove rust-diffr-lib-0.1.

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

Change-Id: I5db91cd6c7eadd3893304f1ec222c7da3425ee1f

gnu/packages/crates-io.scm

@@ -21469,23 +21469,6 @@ Diesel.")
      "This crate provides all necessary tools for comparing word sequences.")
     (license license:expat)))
 
-(define-public rust-diffr-lib-0.1
-  (package
-    (name "rust-diffr-lib")
-    (version "0.1.3")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (crate-uri "diffr-lib" version))
-        (file-name (string-append name "-" version ".tar.gz"))
-        (sha256
-         (base32 "0id3hpblvvcw4ydcd1cc7wgcwqjbh3grlihrmd8zp7k0d2h47i3g"))))
-    (build-system cargo-build-system)
-    (home-page "https://github.com/mookid/diffr")
-    (synopsis "Implementation of Myers diff algorithm")
-    (description "An implementation of Myers diff algorithm.")
-    (license license:expat)))
-
 (define-public rust-diffs-0.3
   (package
     (name "rust-diffs")