FINAL_KEY is not used anymore, remove it.

Author: cdujeu

core/src/plugins/action.share/class.ShareCenter.php

@@ -869,8 +869,6 @@ public function writePubliclet(&$data, $accessDriver, $repository)
         $copy->addOption("PATH", $repository->getOption("PATH"));
         $data["REPOSITORY"] = $copy;
         if ($data["ACTION"] == "") $data["ACTION"] = "download";
-        // Create a random key
-        $data["FINAL_KEY"] = md5(mt_rand().time());
 
         try{
             $hash = $this->getShareStore()->storeShare($repository->getId(), $data, "publiclet");