[TDF] Add utility to remove the first two types of a list.
[TDF] Add utility to remove the first two types of a list.

olifre/root,zzxuanyuan/root,karies/root,zzxuanyuan/root,karies/root,root-mirror/root,olifre/root,olifre/root,olifre/root,zzxuanyuan/root,zzxuanyuan/root,root-mirror/root,root-mirror/root,zzxuanyuan/root,root-mirror/root,olifre/root,karies/root,zzxuanyuan/root,karies/root,root-mirror/root,olifre/root,root-mirror/root,root-mirror/root,zzxuanyuan/root,olifre/root,zzxuanyuan/root,karies/root,zzxuanyuan/root,zzxuanyuan/root,karies/root,karies/root,olifre/root,zzxuanyuan/root,zzxuanyuan/root,root-mirror/root,karies/root,olifre/root,karies/root,olifre/root,olifre/root,root-mirror/root,karies/root,root-mirror/root,karies/root,root-mirror/root