I have SSL installed in my website.
Now I do not need SSL, as I am not doing any secure transaction.
When I access my webpage, I am getting Security Certificate Error.
How do I remove my SSL CSR?
How do I convert my webpages from pointing from HTTPS to HTTP?
If you have access to WHM panel from which the SSL certificate was installed on your server, you just need to enter SSL/TLS section -Manage SSL Hosts and delete the SSL certificate for your domain.Thus, your site will work only via http and won't work via https.
If you don't have access to WHM, just tell your hosting provider to remove the ssl for your domain or just remove the virtalhost from Apache which looks like on the screenhosrt below.: