To revoke a Code Signing ID without a Challenge Phrase, you must go through Manual Revocation.
Please follow these steps:
MANUAL REVOCATION

Create a letter on company letterhead containing the following information:
Subject: REVOKE / REPLACEMENT
Common Name/Organization Name
Your request and the reason for the revocation:
– Lost/corrupt Private key
– Password not available
The type of Digital ID
Signature of the Technical or Organizational Contact of initial enrollment
Fax the letter to 1-650-961-8870. Within 24 hours of receipt of the fax, your former Code Signing Digital ID will be revoked.