gnu: Remove rust-dialoguer-0.6.

* gnu/packages/crates-io.scm (rust-dialoguer-0.6): Delete variable.

gnu/packages/crates-io.scm

@@ -16781,31 +16781,6 @@ procedural macros.")
 example.")
     (license license:bsd-3)))
 
-(define-public rust-dialoguer-0.6
-  (package
-    (name "rust-dialoguer")
-    (version "0.6.2")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (crate-uri "dialoguer" version))
-        (file-name
-         (string-append name "-" version ".tar.gz"))
-        (sha256
-         (base32
-          "0f31ahy6myg2vz9xrdmp0vx0m7x427a1wxpgrgwhxd0rgfpqdapl"))))
-    (build-system cargo-build-system)
-    (arguments
-     `(#:cargo-inputs
-       (("rust-console" ,rust-console-0.11)
-        ("rust-lazy-static" ,rust-lazy-static-1)
-        ("rust-tempfile" ,rust-tempfile-3))))
-    (home-page "https://github.com/mitsuhiko/dialoguer")
-    (synopsis "Library for command line prompts")
-    (description
-     "This package provides a library for command line prompts and the like.")
-    (license license:expat)))
-
 (define-public rust-diesel-1
   (package
     (name "rust-diesel")