security – Can I delete postgres.bki?

A security analysis was executed on a pair of servers that I manage. In the resulting reports, some mastercard "matches" were found in the following file:

/usr/pgsql-10/share/postgres.bki

I would like to show that I am being proactive in terms of security, but:

  • I think it is very unlikely that any real Mastercard information should
    is in this file, considering that my application does not save
    information, they have not even entered a form
  • I am very detestable
    delete or even move / rename this file due to a potentially harmful
    Effects on the functioning of postgresql.

So, my question is, how should I satisfy the security personnel that:

  • the "coincidences" of the mastercard are false positives, or;
  • Have I taken the appropriate measures to mitigate possible security infractions?

Thank you!