gnu: Remove rust-rustc-ap-rustc-ast-654.

* gnu/packages/crates-io.scm (rust-rustc-ap-rustc-ast-654): Delete variable.

gnu/packages/crates-io.scm

@@ -49810,43 +49810,6 @@ It is automatically published using the compiler repository at
 @url{https://www.github.com/rust-lang/rust}")
     (license (list license:expat license:asl2.0))))
 
-(define-public rust-rustc-ap-rustc-ast-654
-  (package
-    (name "rust-rustc-ap-rustc-ast")
-    (version "654.0.0")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (crate-uri "rustc-ap-rustc_ast" version))
-       (file-name
-        (string-append name "-" version ".tar.gz"))
-       (sha256
-        (base32
-         "0n4yhkd7x0c3nqyqz99lwjiix7mf1j5xbkn9fj90h4fxp3did7qq"))))
-    (build-system cargo-build-system)
-    (arguments
-     `(#:skip-build? #t
-       #:cargo-inputs
-       (("rust-bitflags" ,rust-bitflags-1)
-        ("rust-log" ,rust-log-0.4)
-        ("rust-rustc-ap-rustc-data-structures"
-         ,rust-rustc-ap-rustc-data-structures-654)
-        ("rust-rustc-ap-rustc-index" ,rust-rustc-ap-rustc-index-654)
-        ("rust-rustc-ap-rustc-lexer" ,rust-rustc-ap-rustc-lexer-654)
-        ("rust-rustc-ap-rustc-macros" ,rust-rustc-ap-rustc-macros-654)
-        ("rust-rustc-ap-serialize" ,rust-rustc-ap-serialize-654)
-        ("rust-rustc-ap-rustc-span" ,rust-rustc-ap-rustc-span-654)
-        ("rust-scoped-tls" ,rust-scoped-tls-1)
-        ("rust-smallvec" ,rust-smallvec-1))))
-    (home-page "https://github.com/alexcrichton/rustc-auto-publish")
-    (synopsis
-     "Automatically published version of the Rust ast used in rustc")
-    (description
-     "Use the Rust ast used in the Rust compiler with this crate.
-It is automatically published using the compiler repository at
-@url{https://www.github.com/rust-lang/rust}")
-    (license (list license:expat license:asl2.0))))
-
 (define-public rust-rustc-ap-rustc-data-structures-654
   (package
     (name "rust-rustc-ap-rustc-data-structures")