Revert rL350035 "[llvm-exegesis] Clustering: don't enqueue a point multiple times"
Revert rL350035 "[llvm-exegesis] Clustering: don't enqueue a point multiple times"

Let's discuss this on the review thread before submitting.

git-svn-id: 0ff597fd157e6f4fc38580e8d64ab130330d2411@350207 91177308-0d34-0410-b5e6-96231b3b80d8

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