Cleanup: remove unused function in ic.go
Cleanup: remove unused function in ic.go

PiperOrigin-RevId: 289850201
Change-Id: I19c9681bff32860db18d66bd9fdf07af6d824075

GoogleCloudPlatform/healthcare-federated-access-services,GoogleCloudPlatform/healthcare-federated-access-services,GoogleCloudPlatform/healthcare-federated-access-services,GoogleCloudPlatform/healthcare-federated-access-services