mime: remove obsolete property

PierreCapel · PierreCapel · commit b7fed011cd83 · 2025-09-30T18:00:41.000+02:00
diff --git a/Part/SMimePart.php b/Part/SMimePart.php
@@ -18,9 +18,6 @@
  */
 class SMimePart extends AbstractPart
 {
-    /** @internal, to be removed in 8.0 */
-    protected Headers $_headers;
-
     public function __construct(
         private iterable|string $body,
         private string $type,
