Description:

After adding JWT for downloaded files, files are not protected if JWT is disabled

Steps to reproduce:

1. Go to Administration -> FIle Upload
2. Enable Protect Uploaded Files and disable Enable JWT protection and save changes
   
3. Upload file to room
4. Open FIles List to the room and Copy the link of any file
5. Open the copied link in a new incognito browser tab

Expected behavior:

Expected 403 Forbidden

Actual behavior:

File downloaded

Server Setup Information:

• Version of Rocket.Chat Server: 2.3.0
• NodeJS Version: 8.7
• MongoDB Version: 4.0