gnu: Remove rust-pnacl-build-helper-1.

* gnu/packages/crates-io.scm (rust-pnacl-build-helper-1): Delete variable.

gnu/packages/crates-io.scm

@@ -42433,31 +42433,6 @@ (define-public rust-pmutil-0.5
     (description "This package provides utils for proc-macro.")
     (license (list license:asl2.0 license:expat))))
 
-(define-public rust-pnacl-build-helper-1
-  (package
-    (name "rust-pnacl-build-helper")
-    (version "1.4.11")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (crate-uri "pnacl-build-helper" version))
-       (file-name
-        (string-append name "-" version ".tar.gz"))
-       (sha256
-        (base32
-         "145hxz3m3sg8mm9sfqqqaarnna43v65l6whwswrvcvy0fzp17gnz"))))
-    (build-system cargo-build-system)
-    (arguments
-     `(#:cargo-inputs
-       (("rust-tempdir" ,rust-tempdir-0.3)
-        ("rust-walkdir" ,rust-walkdir-1))))
-    (home-page "https://github.com/DiamondLovesYou/cargo-pnacl-helper")
-    (synopsis
-     "Build script helper for building PNaCl/NaCl C/CXX libraries from source")
-    (description
-     "Build script helper for building PNaCl/NaCl C/CXX libraries from source")
-    (license license:mpl2.0)))
-
 (define-public rust-pocket-resources-0.3
   (package
     (name "rust-pocket-resources")