Revert "bugfix: assertion failed when connection reset by peer"

This reverts commit 6440a10cd24f348c3575c682d6839f737649a45a.

this bug fix has some problem
bugfix: connection reset by peer causes assertion failure
Update pkg-handshake.c

希望以後合併代碼的時候認真審核
Merge pull request #65 from jiangzhuo/patch-1

client: fix bug of proto storage dir path concatenation
Merge pull request #1 from NetEase/master

test