treewide: drop myself as maintainer from packages I don't maintain anymore (#481320)

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

@@ -109,6 +109,5 @@ buildPythonPackage (finalAttrs: {
     homepage = "https://github.com/danielgtaylor/python-betterproto";
     changelog = "https://github.com/danielgtaylor/python-betterproto/blob/${finalAttrs.src.tag}/CHANGELOG.md";
     license = lib.licenses.mit;
-    maintainers = with lib.maintainers; [ nikstur ];
   };
 })

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

@@ -50,6 +50,5 @@ buildPythonPackage rec {
     homepage = "https://github.com/vmagamedov/grpclib";
     changelog = "https://github.com/vmagamedov/grpclib/blob/v${version}/docs/changelog/index.rst";
     license = lib.licenses.bsd3;
-    maintainers = with lib.maintainers; [ nikstur ];
   };
 }

pkgs/development/python-modules/plantuml-markdown/default.nix

@@ -65,6 +65,5 @@ buildPythonPackage rec {
     homepage = "https://github.com/mikitex70/plantuml-markdown";
     changelog = "https://github.com/mikitex70/plantuml-markdown/releases/tag/${src.tag}";
     license = lib.licenses.bsd2;
-    maintainers = with lib.maintainers; [ nikstur ];
   };
 }

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

@@ -33,6 +33,5 @@ buildPythonPackage {
     description = "Python interface to a plantuml web service instead of having to run java locally";
     homepage = "https://github.com/dougn/python-plantuml";
     license = lib.licenses.bsd2;
-    maintainers = with lib.maintainers; [ nikstur ];
   };
 }