protocols/kad: Remove deprecated set_protocol_name()#2866

mxinden merged 3 commits intolibp2p:masterlibp2p/rust-libp2p:masterfrom

dmitry-markin:remove-single-kad-protocol-name-settersdmitry-markin/rust-libp2p:remove-single-kad-protocol-name-settersCopy head branch name to clipboard