Revert "Merge pull request #239 from concourse/get_last_modified_time_query"
Revert "Merge pull request #239 from concourse/get_last_modified_time_query"

This reverts commit 4661de955a01be729a08ee74d45c265de5bbb1d5, reversing
changes made to 06d2e32b0784531f389d4beefb4d2c218171f4f3.

concourse/concourse,concourse/concourse,concourse/concourse,concourse/concourse,concourse/concourse