Restore default OOB Claim Provider after removing custom claim provider

I used the powershell cmdlet below to assign my custom claim provider which worked fine. Now I need to remove my custom claim provider and go back to default OOB claim provider. I removed my farm solution but now default OOB claim provider does not show up in people picker any more. How can i restore default claim provider? thanks.

$trusted = Get-SPTrustedIdentityTokenIssuer -Identity "Trusted Login Provider Name Goes Here"
$trusted.ClaimProviderName = “name of your custom claim provider”
$trusted.Update()