IANAL, but here's a section from the relevant law: https://www.copyright.gov/title17/92chap1.html#117 https://www.copyright.gov/title17/92chap1.html#117 Based

IANAL, but here's a section from the relevant law: https://www.copyright.gov/title17/92chap1.html#117 https://www.copyright.gov/title17/92chap1.html#117 Based on that, I don't think you would need to delete them.