gnu: Remove rust-zeroize-1.4.

* gnu/packages/crates-io.scm (rust-zeroize-1.4): Remove variable.

Change-Id: Ica27e00de96134683bec4eea2354307ea144c3c6

gnu/packages/crates-io.scm

@@ -91941,21 +91941,6 @@ will not be ``optimized away'' by the compiler.  It uses a portable pure Rust
 implementation that works everywhere, even WASM!")
     (license (list license:asl2.0 license:expat))))
 
-(define-public rust-zeroize-1.4
-  (package
-    (inherit rust-zeroize-1)
-    (name "rust-zeroize")
-    (version "1.4.3")
-    (source (origin
-              (method url-fetch)
-              (uri (crate-uri "zeroize" version))
-              (file-name (string-append name "-" version ".tar.gz"))
-              (sha256
-               (base32
-                "068nvl3n5hk6lfn5y24grf2c7anzzqfzjjccscq3md7rqp79v3fn"))))
-    (arguments
-     `(#:cargo-inputs (("rust-zeroize-derive" ,rust-zeroize-derive-1))))))
-
 (define-public rust-zeroize-derive-1
   (package
     (name "rust-zeroize-derive")