Revert "gnu: Add libde265."

This reverts commit 7f3c9116bd, which
would have introduced a duplicate definition.

gnu/packages/video.scm

@@ -420,44 +420,6 @@ (define-public libvideogfx
     (home-page "https://dirk-farin.net/software/libvideogfx/index.html")
     (license license:lgpl2.1+)))
 
-(define-public libde265
-  (package
-    (name "libde265")
-    (version "1.0.5")
-    (source
-     (origin
-       (method git-fetch)
-       (uri
-        (git-reference
-         (url "https://github.com/strukturag/libde265.git")
-         (commit (string-append "v" version))))
-       (file-name (git-file-name name version))
-       (sha256
-        (base32 "1qisj8ryzbknam3hk81rq70fsd9mcpxm898bqygvbsmbwyvmz3pg"))))
-    (build-system gnu-build-system)
-    (native-inputs
-     `(("autoconf" ,autoconf)
-       ("automake" ,automake)
-       ("libtool" ,libtool)
-       ("pkg-config" ,pkg-config)
-       ("python" ,python-wrapper)))
-    (inputs
-     `(;; XXX: Build fails with libvideogfx.
-       ;; ("libvideogfx" ,libvideogfx)
-       ("qt" ,qtbase)
-       ("sdl" ,sdl)))
-    (synopsis "H.265 video codec implementation")
-    (description "Libde265 is an implementation of the h.265 video codec.  It is
-written from scratch and has a plain C API to enable a simple integration into
-other software.")
-    (home-page "https://www.libde265.org/")
-    (license
-     (list
-      ;; Applications.
-      license:expat
-      ;; Library.
-      license:lgpl3+))))
-
 (define-public tslib
   (package
     (name "tslib")