maintainers: rsahwe moved to nixpkgs

rsahwe was added to nixpkgs by NixOS/nixpkgs#509659:

https://github.com/NixOS/nixpkgs/commit/44f87293db7d85edfd0b199a17f5a35e5b7a8e57

all-maintainers.nix

@@ -2144,7 +2144,7 @@
     github = "rsahwe";
     githubId = 201613730;
     name = "rsahwe";
-    source = "home-manager";
+    source = "nixpkgs";
   };
   rszamszur = {
     email = "radoslawszamszur@gmail.com";

modules/lib/maintainers.nix

@@ -529,12 +529,6 @@
     github = "Rosuavio";
     githubId = 7164552;
   };
-  rsahwe = {
-    name = "rsahwe";
-    email = "rsahwe@gmx.net";
-    github = "rsahwe";
-    githubId = 201613730;
-  };
   rszamszur = {
     name = "Radosław Szamszur";
     email = "radoslawszamszur@gmail.com";

modules/programs/rizin.nix

@@ -9,7 +9,7 @@ let
 in
 {
   meta.maintainers = [
-    lib.hm.maintainers.rsahwe
+    lib.maintainers.rsahwe
   ];
 
   options = {