This reverts commit 38788acc5cbec147d6a46a6254ef8eec0a270c71, which
causes the following tests to fail (not return any FREEBUSY):
tests/regression-suite/0832-freebusy.test
tests/regression-suite/0836-freebusy.test
tests/regression-suite/0837-freebusy.test
tests/regression-suite/0888-GET-freebusy.test