Revert "gnu: Add perl-gd."

This reverts commit 7bc9a96c38.

This package is a duplicate

gnu/packages/perl.scm

@@ -5655,28 +5655,6 @@ defining functions and methods with parameter lists. At minimum this saves you
 from having to unpack @code{@@_} manually, but this module can do much more.")
     (license license:perl-license)))
 
-(define-public perl-gd
-  (package
-    (name "perl-gd")
-    (version "2.77")
-    (source (origin
-              (method url-fetch)
-              (uri (string-append "mirror://cpan/authors/id/R/RU/RURBAN/GD-"
-                                  version ".tar.gz"))
-              (sha256
-               (base32
-                "1dbg040nkbv8jjgabzjpmay5ysvg3cgxsqmv5771dq1vxyw8hv5m"))))
-    (build-system perl-build-system)
-    (native-inputs (list perl-extutils-pkgconfig perl-test-fork))
-    (inputs (list gd))
-    (home-page "https://metacpan.org/release/GD")
-    (synopsis "Perl interface to the libgd graphics library")
-    (description
-     "@file{GD.pm} is a Perl interface to the gd graphics library.  GD allows
-you to create color drawings using a large number of graphics primitives, and
-emit the drawings as PNG files.")
-    (license license:perl-license)))
-
 (define-public perl-getopt-argvfile
   (package
     (name "perl-getopt-argvfile")