Replace McdDispatcherContext->client_locks with a boolean
Replace McdDispatcherContext->client_locks with a boolean

It only has one use, now.

freedesktop-unofficial-mirror/telepathy__telepathy-mission-control,freedesktop-unofficial-mirror/telepathy__telepathy-mission-control,freedesktop-unofficial-mirror/telepathy__telepathy-mission-control,freedesktop-unofficial-mirror/telepathy__telepathy-mission-control