hosts/db-mdb11, roles/dbserver-mariadb: remove ansibleLibPackage opt

hosts/db-mdb11/default.nix

@@ -17,7 +17,6 @@
 
   dbserver-mariadb = {
     enable = true;
-    ansibleLibPackage = pkgs.python312Packages.pymysql;
   };
 
   base.userSSHKeys = [

roles/dbserver-mariadb.nix

@@ -24,19 +24,12 @@ in
       description = "Package to use for the database server";
       example = mariadb;
     };
-
-    ansibleLibPackage = mkOption {
-      type = types.package;
-      default = defaultPyMySQLPackage;
-      description = "Python library to use for Ansible interfacing";
-      example = pkgs.python313Packages.pymysql;
-    };
   };
 
   config = mkIf cfg.enable {
     environment.systemPackages = with pkgs; [
       cfg.dbPackage
-      cfg.ansibleLibPackage
+      (python3.withPackages (ps: [ ps.pymysql ]))
     ];
 
     services.mysql = {