Revert "Pass State function into PriorityTagDeserializer constructor to ensure correct handling"

This reverts commit 1343fc911120a895055d6016aa8fcd59bfd7baeb.
Revert "Extract PriorityTagDerializer for reducing prioritized thrift values"

This reverts commit d1cc061412ada4b334023c2735411e505183c10e.
Merge pull request #213 from ambiata/topic/revert-priority-mr-stuff

Revert PriorityTagDeserializer changes