Remove support for libssh2 in curl

Author: mnapoli

tests/test_2_extensions.php

@@ -89,8 +89,6 @@
     'curl-openssl-certificates-location' => openssl_get_cert_locations()['default_cert_file'] === '/etc/pki/tls/cert.pem',
     // Check the file in previous Bref versions is still here (would be a breaking change)
     'curl-openssl-certificates-backwards-compatibility' => file_exists('/opt/bref/ssl/cert.pem'),
-    // Make sure we are using curl with our compiled libssh
-    'curl-libssh' => version_compare(str_replace('libssh2/', '', curl_version()['libssh_version']), '1.10.0', '>='),
     'openssl' => (function() {
         $private_key = openssl_pkey_new(['private_key_bits' => 2048]);
         if ($private_key === false) {