[MERGED PR] Remove the hygiene motive from RP

[444explorer]

Hygiene is the only motive that actually works...
From my experience hunger and thirst completely fail at encouraging people to visit the bar, but hygiene actually does drive people to avoid messes and use the showers. Sure, that doesn't encourage you to interact with other players, but stink lines having no mechanical impact means it doesn't interrupt RP or important events either.
Killing it is a mistake, IMO. I can remember far more times antags have taken advantage of crewmembers wandering off alone to shower than antags messing with food or drinks.

For my experience it's the total opposite. The only times I've seen antags take advantage of it is just by skipping escalation and totally ignoring RP.