gnu: Remove rust-cargo-audit-0.16.

* gnu/packages/crates-io.scm (rust-cargo-audit-0.16): Delete variable.

gnu/packages/crates-io.scm

@@ -10097,44 +10097,6 @@ capabilities.")
 the library crate of Cargo.")
     (license (list license:expat license:asl2.0))))
 
-(define-public rust-cargo-audit-0.16
-  (package
-    (name "rust-cargo-audit")
-    (version "0.16.0")
-    (source (origin
-              (method url-fetch)
-              (uri (crate-uri "cargo-audit" version))
-              (file-name (string-append name "-" version ".tar.gz"))
-              (sha256
-               (base32
-                "1ixlfc8h7qgyr1ng37kx1f222g3pc97sm72pgj1mkl6q3daf5a7m"))))
-    (build-system cargo-build-system)
-    (arguments
-     ;; disable due to network connection
-     ;; https://github.com/rustsec/rustsec/issues/507
-     `(#:tests? #f
-       #:cargo-inputs
-       (("rust-abscissa-core" ,rust-abscissa-core-0.5)
-        ("rust-gumdrop" ,rust-gumdrop-0.7)
-        ("rust-home" ,rust-home-0.5)
-        ("rust-lazy-static" ,rust-lazy-static-1)
-        ("rust-rustsec" ,rust-rustsec-0.25)
-        ("rust-serde" ,rust-serde-1)
-        ("rust-serde-json" ,rust-serde-json-1)
-        ("rust-thiserror" ,rust-thiserror-1))
-       #:cargo-development-inputs
-       (("rust-abscissa-core" ,rust-abscissa-core-0.5)
-        ("rust-once-cell" ,rust-once-cell-1)
-        ("rust-tempfile" ,rust-tempfile-3)
-        ("rust-toml" ,rust-toml-0.5))))
-    (native-inputs (list pkg-config))
-    (inputs (list libssh2 openssl zlib))
-    (home-page "https://rustsec.org")
-    (synopsis "Audit @file{Cargo.lock} for crates with security vulnerabilities")
-    (description "This package audits @file{Cargo.lock} for crates with
-security vulnerabilities.")
-    (license (list license:asl2.0 license:expat))))
-
 (define-public rust-cargo-edit-0.8
   (package
     (name "rust-cargo-edit")