remove cold system

The book of Judgement already covers weather encounters

systems.tex

@@ -172,13 +172,6 @@ Humans can endure a hard-march better than most.
 Despite their slow gait, they can out-pace almost anything in the long-term.%
 \exRef{stories}{Stories}{humanInheritance}
 
-\makeAutoRule{cold}{Cold Seasons}{gain 2~\glsfmtlongpl{ep} each \glsfmttext{interval} and need fire to rest}
-\index{Winter|see {Cold Seasons}}
-\index{Snow|see {Cold Seasons}}
-inflict 2~\glspl{ep} every \gls{interval}, unless the character has extremely warm clothing.
-
-Characters can only rest with a fire, which may attract \glspl{monster} (usually a 1 in 6 chance per \gls{interval}).
-
 \subsection{Journeys on Water}
 
 \makeRule{mend_sail}{Mending a sail}{Dexterity}{Seafaring}{10}