minor #36274 [HttpFoundation] No need to reconnect the bags to the se…

…ssion after session_regenerate_id (rosier)

This PR was merged into the 3.4 branch.

Discussion
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[HttpFoundation] No need to reconnect the bags to the session after session_regenerate_id

| Q             | A
| ------------- | ---
| Branch?       | 3.4
| Bug fix?      | no
| New feature?  | no
| Deprecations? | no
| Tickets       | -
| License       | MIT
| Doc PR        | -

Bug https://bugs.php.net/70013 was fixed before the release of PHP v7.0

https://3v4l.org/A8YmY

Related to #15243

Commits
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923c24f No need to reconnect the bags to the session

src/Symfony/Component/HttpFoundation/Session/Storage/NativeSessionStorage.php

@@ -223,10 +223,6 @@ public function regenerate($destroy = false, $lifetime = null)
 
         $isRegenerated = session_regenerate_id($destroy);
 
-        // The reference to $_SESSION in session bags is lost in PHP7 and we need to re-create it.
-        // @see https://bugs.php.net/70013
-        $this->loadSession();
-
         if (null !== $this->emulateSameSite) {
             $originalCookie = SessionUtils::popSessionCookie(session_name(), session_id());
             if (null !== $originalCookie) {