mopidy-tidal: drop myself (rodrgz) as maintainer

pkgs/applications/audio/mopidy/tidal.nix

···
     description = "Mopidy extension for playing music from Tidal";
     homepage = "https://github.com/tehkillerbee/mopidy-tidal";
     license = licenses.mit;
-    maintainers = [ maintainers.rodrgz ];
+    maintainers = [ ];
   };
 }