Revert "use a non-tx cache for the non-tx test."
Revert "use a non-tx cache for the non-tx test."

The issue with the test as it was only presents on one network, so it's
not worth making the test more complex for that one case.

This reverts commit b6b2e8deec3c97fea36f5dd41c5d442f6bbade94.

immutant/immutant,kbaribeau/immutant,kbaribeau/immutant,immutant/immutant,immutant/immutant,immutant/immutant,kbaribeau/immutant