DP 9 with TLS 1.0 enabled

Hello fellows i have an environment with DP 9.06 IDB corrupted and most of clients enabled encrypted communication but when i check status says they are not encrypted but giving secure communication errors.

How do i remove encryption and certificates generated in all environment so that i can restore to a good point and this way been able to migrate to a new fresh cell with DP 10.91 or DP 11

Best regards