Revert "IP based rate limit"

This reverts commit 87c693736f128927291f8b396dba85fa992539ae.

src/routes/conversation/[id]/+server.ts

@@ -46,21 +46,10 @@ export async function POST({ request, fetch, locals, params, getClientAddress })
 		throw error(429, "Exceeded number of messages before login");
 	}
 
-	if (RATE_LIMIT !== "") {
-		let nEvents = 0;
-		if (locals.user?._id) {
-			// if logged in do rate limiting based on user id
-			nEvents = await collections.messageEvents.countDocuments({ userId });
-		} else {
-			// do rate limiting based on session id but also ip address
-			const nEventsIp = await collections.messageEvents.countDocuments({ ip: getClientAddress() });
-			const nEventsSession = await collections.messageEvents.countDocuments({ userId });
-			nEvents = Math.max(nEventsIp, nEventsSession);
-		}
+	const nEvents = await collections.messageEvents.countDocuments({ userId });
 
-		if (nEvents > parseInt(RATE_LIMIT)) {
-			throw error(429, ERROR_MESSAGES.rateLimited);
-		}
+	if (RATE_LIMIT != "" && nEvents > parseInt(RATE_LIMIT)) {
+		throw error(429, ERROR_MESSAGES.rateLimited);
 	}
 
 	const model = models.find((m) => m.id === conv.model);