gnu: Remove font-dongle.

* gnu/packages/fonts.scm (font-dongle): Delete variable.

Fixes: guix/guix#3937
Change-Id: I3f07ef4e2b620545fbb988f756e40841cfac021a

gnu/packages/fonts.scm

@@ -3696,61 +3696,6 @@ Italic and Oblique styles.")
    (home-page "https://rubjo.github.io/victor-mono/")
    (license license:silofl1.1)))
 
-(define-public font-dongle
-  (let ((commit "f7127c4d2450e1cad20254ec692591347e2fc260")
-        (revision "1"))
-    (package
-      (name "font-dongle")
-      (version (git-version "0" revision commit))
-      (source
-       (origin
-         (method git-fetch)
-         (uri (git-reference
-               (url "https://github.com/yangheeryu/Dongle")
-               (commit commit)))
-         (file-name (git-file-name name version))
-         (sha256
-          (base32 "1gwrjv468bqfa3nxh01vprk7rp24cnhk3zlkrv5mzqcbcdf96nqp"))))
-      (build-system font-build-system)
-      (arguments
-       `(#:phases
-         (modify-phases %standard-phases
-           (add-before 'install 'build
-             (lambda _
-               (begin
-                 (chdir "sources")
-                 (invoke "unzip" "Dongle.zip")
-                 (chdir "..")
-                 (invoke "python3" "build.py")))))))
-      (native-inputs
-       (list python
-             python-glyphslib
-             python-fonttools
-             python-ufolib2
-             python-ufo2ft
-             zip))
-      (synopsis
-       "Rounded sans-serif typeface, supporting Hangeul and Latin glyphs")
-      (description
-       "Dongle(동글) is a rounded sans-serif typeface for display.  It is a
-modular Hangeul with the de-square frame, creating a playful and rhythmic
-movement.  The name, Dongle comes from a Korean onomatopoeia, meaning 'rounded
-or curved shape (with adorable impression)’.
-
-Dongle was originally designed as a 'Jamo (consonant and vowel in Hangeul)
-typing module' for the author's student project.  Later it revised into
-‘syllabic module’ to be released to the public.  As the character size varies
-according to the syllable structure, Dongle typeface is much smaller compared
-to other square frame Korean typefaces.  Therefore, it is better to adjust the
-font size visually to your liking, rather than relying on the point size of
-the editing program.
-
-It is designed especially for Hangeul typography, but it also includes Latin
-alphabet as a part of KS X 1001.  This typeface has a light, regular, and bold
-weight.")
-      (home-page "https://github.com/yangheeryu/Dongle")
-      (license license:silofl1.1))))
-
 (define-public font-meera-inimai
   (package
     (name "font-meera-inimai")