simplification: no need for parameters beyond mandatory driver

lib/AccountManager/DB.pm

@@ -5,11 +5,7 @@ use Mojo::Base 'Rose::DB';
 __PACKAGE__->use_private_registry;
 
 __PACKAGE__->SUPER::register_db (
-    driver          => 'mysql',
-    host            => 'localhost',
-    database        => 'fake',
-    password        => 'fake',
-    username        => 'fake',
+    driver => 'mariadb',
 );
 
 Rose::DB->max_array_characters(500);