gnu: Remove rust-ical-0.7.

* gnu/packages/crates-graphics.scm (rust-ical-0.7): Delete variable.

Change-Id: Ic2f928ada07d556bb981148da82769a2c34e3bbc

gnu/packages/crates-graphics.scm

@@ -2318,29 +2318,6 @@ (define-public rust-gpu-alloc-types-0.3
     (description "Core types of gpu-alloc crate.")
     (license (list license:expat license:asl2.0))))
 
-(define-public rust-ical-0.7
-  (package
-    (name "rust-ical")
-    (version "0.7.0")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (crate-uri "ical" version))
-       (file-name (string-append name "-" version ".tar.gz"))
-       (sha256
-        (base32 "1kvk1pgas67rnp0n4424lxxs8y3n1h0fw3ap8jbfcxqdmlap57sa"))))
-    (build-system cargo-build-system)
-    (arguments
-     `(#:skip-build? #t
-       #:cargo-inputs
-       (("rust-thiserror" ,rust-thiserror-1))))
-    (home-page "https://github.com/Peltoche/ical-rs")
-    (synopsis "Ical/Vcard parser for Rust")
-    (description
-     "This library parse the ICalendar format defined in RFC5545, as well as
-similar formats like VCard.")
-    (license license:asl2.0)))
-
 (define-public rust-image-0.25
   (package
     (name "rust-image")