CmdID / PowerShell / Cmdlets / Remove
Remove-EOPProtectionPolicyRule
Use the Remove-EOPProtectionPolicyRule cmdlet to remove rules for the built-in security features for all cloud mailboxes in preset security policies. Exchange PowerShell reference
From the Exchange PowerShell reference 3 parameters Its page in the reference
Parameters
-IdentityThe Identity parameter specifies the rule that you want to remove.-Confirm, -cfThe Confirm switch specifies whether to show or hide the confirmation prompt.-WhatIf, -wiThe WhatIf switch shows what the command does without making any changes.