SSH2: rm unused constant
SSH2: rm unused constant

it doesn't need to be defined since the strlen($this->last_interactive_response)
check in _login_helper serves the same purpose that NET_SSH_MASK_LOGIN_INTERACTIVE
was intended to serve

kenichiii/phpseclib,kenichiii/phpseclib,splitice/phpseclib,metaclassing/phpseclib,splitice/phpseclib,thaigialai1987/phpseclib,phpseclib/phpseclib,creatuity/phpseclib,metaclassing/phpseclib,danog/phpseclib,melya/phpseclib,terrafrost/phpseclib,thaigialai1987/phpseclib,melya/phpseclib,paragonie-scott/phpseclib,danog/phpseclib,paragonie-scott/phpseclib,creatuity/phpseclib