How to disable or remove Intel SMM?

Question

I have successfully removed Intel ME from the firmware by reflashing the BIOS using corna's tool:

• https://github.com/corna/me_cleaner

However I am still concerned about SMM. Intel ME and AMT vulnerabilities are horrible and classified as ring -3, however the SMM module also has plenty of vulnerabilities and possible rootkits and are classified as ring -2 vulnerability.

I would like to remove or disable completely the SMM module as well. It is an Acer-Aspire laptop with an Insyde BIOS on it.

I don't know to what degree the removal of the ME system affected the SMM module, do I need to remove the SMM as well? Is it possible at all? If so please tell me whether there are any other similar tools like corna's tool for ME that can remove the SMM as well.