Remove config option that is not used anymore

server/config/config.example.js

@@ -246,17 +246,11 @@ module.exports =
 	},
 	// When truthy, the room will be open to all users when as long as there
 	// are allready users in the room
-	activateOnHostJoin    : true,
-	// If this is set to true, only signed-in users will be able
-	// to join a room directly. Non-signed-in users (guests) will
-	// always be put in the lobby regardless of room lock status.
-	// If false, there is no difference between guests and signed-in
-	// users when joining.
-	requireSignInToAccess : true,
+	activateOnHostJoin : true,
 	// Room size before spreading to new router
-	routerScaleSize       : 20,
+	routerScaleSize    : 20,
 	// Mediasoup settings
-	mediasoup             :
+	mediasoup          :
 	{
 		numWorkers : Object.keys(os.cpus()).length,
 		// mediasoup Worker settings.