remove duplicated lines.
remove duplicated lines.

opal/opal,Mogztter/opal,kachick/opal,wied03/opal,iliabylich/opal,opal/opal,kachick/opal,Mogztter/opal,opal/opal,iliabylich/opal,kachick/opal,wied03/opal,jgaskins/opal,Mogztter/opal,jgaskins/opal,opal/opal,wied03/opal,iliabylich/opal,jgaskins/opal,Mogztter/opal,kachick/opal