Revert "WIP tests"

This reverts commit 4571c4f63f0d6b9e417bbbd82a4d855ab40613f1.
Revert "Update evented led driver"

This reverts commit f86264e66187e601de96f518b06e0ac6129951ba.
Revert "handle pin_state events"

This reverts commit da0dac653abc9cc46d8476b4c725930dd5a2913a.
remove pin state query code and fix tests