gnu: Remove rust-mpris-player-0.6.

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

gnu/packages/crates-io.scm

@@ -34725,33 +34725,6 @@ checking.")
     (description "mp4 is a Rust library to read and write ISO-MP4 files.")
     (license license:expat)))
 
-(define-public rust-mpris-player-0.6
-  (package
-    (name "rust-mpris-player")
-    (version "0.6.1")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (crate-uri "mpris-player" version))
-       (file-name
-        (string-append name "-" version ".tar.gz"))
-       (sha256
-        (base32 "01xvdzac9vwzc0fxpa7qwnn3n62bngrmr5z2n9pf86z3xgbasssg"))))
-    (build-system cargo-build-system)
-    (arguments
-     `(#:cargo-inputs
-       (("rust-dbus" ,rust-dbus-0.6)
-        ("rust-glib" ,rust-glib-0.10))))
-    (native-inputs
-     (list pkg-config))
-    (inputs
-     (list dbus glib))
-    (home-page "https://gitlab.gnome.org/World/Rust/mpris-player")
-    (synopsis "Library for creating MPRIS2 media players over D-Bus")
-    (description "This package provides a library for creating MPRIS2 media
-players over D-Bus.")
-    (license license:gpl3+)))
-
 (define-public rust-multi-default-trait-impl-0.1
   (package
     (name "rust-multi-default-trait-impl")