To remove backlinks, you have to contact the webmasters of the website and ask them nicely to delete the link pointed to your site. NEVER threaten a webmaster and be very polite if you want to be treated the same.
Be prepared to send hundreds of requests.
Follow these steps to remove a bad backlink:
1) Identify the link you want to remove
2) Find the contact information on the website. If no contact details are available, Whois can help you find the email address used to register the domain or host the website.
3) Send an email to the webmaster, and make the location of the link you want to remove very clear. Try to ease the webmaster job and make sure he can find and remove your link in less than one minute.
4) If you are not getting a reply in 5-10 business days, send a follow-up.
Removing backlinks takes time, and you have to be patient. It’s a process you can do it yourself, and there is no reason to pay link removal companies to do your work.