Hi my site renders with error when using https because the ssl is expired.

I do not pay for ssl so can I have the ssl certificated completely deleted to prevent error message. 

I know I do not have the plan for it and do not pay for it, but I do not want it. Now because it is expired it causes error. If it was removed completely I would not get the error. 

Please permanently actually remove my ssl certificate, rather than leaving an expired one. Thanks.