Update doc/api/logger.md

Co-authored-by: Rafael Gonzaga <rafael.nunu@hotmail.com>

Author: mertcanaltin

doc/api/logger.md

@@ -66,7 +66,6 @@ added: REPLACEME
 * `options` {Object}
   * `level` {string} Minimum log level. **Default:** `'info'`.
   * `bindings` {Object} Context fields added to all log records.
-    **Default:** `{}`.
   * `serializers` {Object} Custom serializer functions for specific fields.
     **Default:** `{}`.