Description:
------------
When using unlink for a FTPS filename with a stream context where verify_peer is set to false, it still tries to verify the certificate.

This results in two warnings
- "SSL operation failed with code 1. OpenSSL Error messages: error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed"
- "Unable to connect to ftps://servername/path"

Test script:
---------------
$sslContext = stream_context_create(['ssl' => [
  'verify_peer' => false,
  'verify_peer_name' => false
]]);

unlink('ftps://servername/path', $sslContext);