Unlinks a federated identity from an existing account. Unlinked logins will be considered new identities next time they are seen. Removing the last linked login will make this identity inaccessible.
See https://www.paws-r-sdk.com/docs/cognitoidentity_unlink_identity/ for full documentation.
cognitoidentity_unlink_identity(IdentityId, Logins, LoginsToRemove)
[required] A unique identifier in the format REGION:GUID.
[required] A set of optional name-value pairs that map provider names to provider tokens.
[required] Provider names to unlink from this identity.