Deb Mukherjee 17da2cab78 TX_SIZE contexts simplification.
Reduces TX_SIZE contexts to 2 for each kind. The code is
cleaner and there is hardly any performance difference with
more than two contexts.

Results: almost neutral

Change-Id: I17656bd6db76224ae2856adf882504560e7dbaa4
2013-06-08 12:32:26 -07:00
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