SSH2: rm unsupported algorithms if OpenSSL is being used
SSH2: rm unsupported algorithms if OpenSSL is being used

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