Unmaintain packages I don't use anymore

Just got a reminder via the vulnerability roundup[1] that I'm still
listed as maintainer for Synergy, even though I stopped using it years
ago.

I'll also take this as an opportunity to remove myself from other
packages which I stopped using and thus most certainly won't be able to
maintain. The latter is already hard enough these days for software
which I *do* use.

[1]: #94007

Signed-off-by: aszlig <aszlig@nix.build>

pkgs/applications/audio/mixxx/default.nix

@@ -52,7 +52,7 @@ mkDerivation rec {
     homepage = "https://mixxx.org";
     description = "Digital DJ mixing software";
     license = licenses.gpl2Plus;
-    maintainers = [ maintainers.aszlig maintainers.goibhniu maintainers.bfortz ];
+    maintainers = [ maintainers.goibhniu maintainers.bfortz ];
     platforms = platforms.linux;
   };
 }

pkgs/applications/misc/synergy/default.nix

@@ -75,7 +75,7 @@ stdenv.mkDerivation rec {
     description = "Share one mouse and keyboard between multiple computers";
     homepage = "http://synergy-project.org/";
     license = licenses.gpl2;
-    maintainers = with maintainers; [ aszlig enzime ];
+    maintainers = with maintainers; [ enzime ];
     platforms = platforms.all;
   };
 }

pkgs/applications/networking/instant-messengers/gajim/default.nix

@@ -62,7 +62,7 @@ python3.pkgs.buildPythonApplication rec {
     homepage = "http://gajim.org/";
     description = "Jabber client written in PyGTK";
     license = lib.licenses.gpl3Plus;
-    maintainers = with lib.maintainers; [ raskin aszlig abbradar ];
+    maintainers = with lib.maintainers; [ raskin abbradar ];
     downloadPage = "http://gajim.org/downloads.php";
     updateWalker = true;
     platforms = lib.platforms.linux;

pkgs/development/python-modules/ecdsa/default.nix

@@ -22,7 +22,6 @@ buildPythonPackage rec {
     description = "ECDSA cryptographic signature library";
     homepage = "https://github.com/warner/python-ecdsa";
     license = licenses.mit;
-    maintainers = with maintainers; [ aszlig ];
   };
 
 }

pkgs/development/python-modules/paramiko/default.nix

@@ -37,7 +37,6 @@ buildPythonPackage rec {
     homepage = "https://github.com/paramiko/paramiko/";
     description = "Native Python SSHv2 protocol library";
     license = licenses.lgpl21Plus;
-    maintainers = with maintainers; [ aszlig ];
 
     longDescription = ''
       This is a library for making SSH2 connections (client or server).

pkgs/development/tools/analysis/eresi/default.nix

@@ -61,7 +61,6 @@ stdenv.mkDerivation rec {
     description = "The ERESI Reverse Engineering Software Interface";
     license = lib.licenses.gpl2;
     homepage = "http://www.eresi-project.org/";
-    maintainers = [ lib.maintainers.aszlig ];
     platforms = lib.platforms.linux;
   };
 }