remove unused container dir
remove unused container dir

chamikaramj/beam,chamikaramj/beam,lukecwik/incubator-beam,apache/beam,apache/beam,chamikaramj/beam,lukecwik/incubator-beam,apache/beam,apache/beam,lukecwik/incubator-beam,apache/beam,chamikaramj/beam,apache/beam,chamikaramj/beam,apache/beam,lukecwik/incubator-beam,lukecwik/incubator-beam,chamikaramj/beam,lukecwik/incubator-beam,apache/beam,apache/beam,chamikaramj/beam,chamikaramj/beam,lukecwik/incubator-beam,lukecwik/incubator-beam,apache/beam,chamikaramj/beam,apache/beam,chamikaramj/beam,lukecwik/incubator-beam,lukecwik/incubator-beam