Remove redundant check for bytes
Remove redundant check for bytes

mitghi/pyopenssl,reaperhulk/pyopenssl,mhils/pyopenssl,pyca/pyopenssl,reaperhulk/pyopenssl,mitghi/pyopenssl,r0ro/pyopenssl,sorenh/pyopenssl,sholsapp/pyopenssl,adamwolf/pyopenssl,hynek/pyopenssl,samv/pyopenssl,mhils/pyopenssl,elitest/pyopenssl,hynek/pyopenssl,aalba6675/pyopenssl,kjav/pyopenssl,mschmo/pyopenssl,aalba6675/pyopenssl,daodaoliang/pyopenssl,r0ro/pyopenssl