transmission: drop myself from .meta.maintainers

I rarely used it in the past few years,
and there's so much of other things to do around nixos.org

pkgs/applications/networking/p2p/transmission/default.nix

@@ -142,7 +142,7 @@ in stdenv.mkDerivation {
     '';
     homepage = "http://www.transmissionbt.com/";
     license = lib.licenses.gpl2Plus; # parts are under MIT
-    maintainers = with lib.maintainers; [ astsmtl vcunat ];
+    maintainers = with lib.maintainers; [ astsmtl ];
     platforms = lib.platforms.unix;
   };