channel: drop old comment
channel: drop old comment

Zirpon/tchannel,benfleis/tchannel,hustxiaoc/tchannel,sasa233/tchannel,chenwenbin928/tchannel,i/tchannel,sasa233/tchannel,RyanTech/tchannel,RyanTech/tchannel,hustxiaoc/tchannel,i/tchannel,bunnyblue/tchannel,vanloswang/tchannel,hustxiaoc/tchannel,chenwenbin928/tchannel,benfleis/tchannel,bunnyblue/tchannel,chenwenbin928/tchannel,Zirpon/tchannel,Zirpon/tchannel,vanloswang/tchannel,i/tchannel,sasa233/tchannel,savaki/tchannel,benfleis/tchannel,RyanTech/tchannel,savaki/tchannel,vanloswang/tchannel,savaki/tchannel,bunnyblue/tchannel