gradm, paxctl, pax-utils: unmaintain

pkgs/os-specific/linux/gradm/default.nix

···
     homepage    = "https://grsecurity.net";
     license     = licenses.gpl2;
     platforms   = platforms.linux;
-    maintainers = with maintainers; [ thoughtpolice wizeman ];
+    maintainers = with maintainers; [ thoughtpolice ];
   };
 }

pkgs/os-specific/linux/pax-utils/default.nix

···
     homepage    = "http://dev.gentoo.org/~vapier/dist/";
     license     = licenses.gpl2;
     platforms   = platforms.linux;
-    maintainers = with maintainers; [ thoughtpolice wizeman ];
+    maintainers = with maintainers; [ thoughtpolice ];
   };
 }

pkgs/os-specific/linux/paxctl/default.nix

···
     homepage    = "https://pax.grsecurity.net";
     license     = licenses.gpl2;
     platforms   = platforms.linux;
-    maintainers = with maintainers; [ thoughtpolice wizeman ];
+    maintainers = with maintainers; [ thoughtpolice ];
   };
 }