How to unlink facebook from gmail account to stop mails

Always i`ll get notification mails in my gmail account which is connected from facebook, I dont want these mails. 
To overcome this problem Follow Simple Steps:

1. Go to Your Facebook home page.
   
2. Then click on Account setting.
   
   
   
   
   
3. then click on Notification setting.
   
   
4. then click on Email.
   
   
   
   
5.  Then click on "Only nottification abbout your account , security and setting.
   
   
   
   
6. You Done!!!

Now You won't recieve any Email Regarding your Facebook Account...