only delete streamChannel if empty
only delete streamChannel if empty

vogdb/cm,njam/CM,njam/CM,alexispeter/CM,tomaszdurka/CM,tomaszdurka/CM,fauvel/CM,vogdb/cm,alexispeter/CM,fauvel/CM,tomaszdurka/CM,njam/CM,fauvel/CM,vogdb/cm,alexispeter/CM,alexispeter/CM,vogdb/cm,vogdb/cm,tomaszdurka/CM,cargomedia/CM,cargomedia/CM,njam/CM,cargomedia/CM,njam/CM,fauvel/CM,fauvel/CM,cargomedia/CM,tomaszdurka/CM