This is a fix to motion #23.
In motion #23, we intended to add two Gatekeepers. However in the batchAll call, the second Gatekeeper's identity key was put into a phalaRegistry.addPRuntime call by mistake. As a result, the second GK was not added, and a bad pRuntime hash was added instead.
This motion removes the wrongly added pRuntime hash, and register the second Gatekeeper again.