Remove outdated reference to iterators paper.
Remove outdated reference to iterators paper.

[Ok'ed by Brad]

The reference used an old working title of the original PGAS11 paper.
I pulled it wholesale since we would like to get away from citing
papers in the spec.



git-svn-id: 88467cb1fb04b8a755be7e1ee1026be4190196ef@23353 3a8e244f-b0f2-452b-bcba-4c88e055c3ca

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