Update auth.nim (#1164)

Avoid expiring the tokens for now.

See:
- https://github.com/zedeus/nitter/issues/983#issuecomment-1923046398
- https://github.com/zedeus/nitter/issues/1155#issuecomment-1917167072

Thanks @cmj

src/auth.nim

@@ -202,7 +202,7 @@ proc initAccountPool*(cfg: Config; path: string) =
     quit 1
 
   let accountsPrePurge = accountPool.len
-  accountPool.keepItIf(not it.hasExpired)
+  #accountPool.keepItIf(not it.hasExpired)
 
   log "Successfully added ", accountPool.len, " valid accounts."
   if accountsPrePurge > accountPool.len: