TChannel: drop deprecated send
TChannel: drop deprecated send

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