Revert "SERVER-10039 sorting ignored in returned query obj for differ"

This reverts commit bbf164888ed846d5f180877ad8c70b5d6adafc34.
Revert "SERVER-10039 buildbot test ChunkManagerLoadBasicTest need index to support sorting chunks in test"

This reverts commit 686cb5e30f6fbb31922c2e650018ed4e1efc77cf.
Merge pull request #440 from Tokutek/fix-2.2.6

revert changes related to SERVER-10039