gnu: Remove rust-volatile-register-0.2.

* gnu/packages/crates-io.scm (rust-volatile-register-0.2): Delete variable.

Change-Id: Ic2390a8efbde8dcfc8f40bea8278f9b6010026c7

gnu/packages/crates-io.scm

@@ -76326,27 +76326,6 @@ updated when the crate version changes.")
      "The uninhabited void type for use in statically impossible cases.")
     (license license:expat)))
 
-(define-public rust-volatile-register-0.2
-  (package
-    (name "rust-volatile-register")
-    (version "0.2.1")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (crate-uri "volatile-register" version))
-       (file-name (string-append name "-" version ".tar.gz"))
-       (sha256
-        (base32 "1dh8x7z1ywjzyziz3jyjj39imp37s05c46whf2pkyablkngz3s4y"))))
-    (build-system cargo-build-system)
-    (arguments
-     `(#:skip-build? #t
-       #:cargo-inputs (("rust-vcell" ,rust-vcell-0.1))))
-    (home-page "https://github.com/japaric/volatile-register")
-    (synopsis "Volatile access to memory mapped hardware registers")
-    (description "This package provides volatile access to memory mapped
-hardware registers.")
-    (license (list license:expat license:asl2.0))))
-
 (define-public rust-vsock-0.3
   (package
     (name "rust-vsock")