Micro optimization

src/main/kotlin/ru/dbotthepony/mc/otm/core/util/TickList.kt

@@ -93,19 +93,26 @@ class TickList {
 			ticker.tick()
 		}
 
+		if (alwaysValveTime.isNotEmpty()) {
 			always.addAll(alwaysValveTime)
 			alwaysValveTime.clear()
+		}
 
+		if (conditionalValveTime.isNotEmpty()) {
 			for (ticker in conditionalValveTime) {
 				conditional.addFirst(ticker)
 			}
 
+			conditionalValveTime.clear()
+		}
+
+		if (onceValveTime.isNotEmpty()) {
 			for (ticker in onceValveTime) {
 				once.addFirst(ticker)
 			}
 
-		conditionalValveTime.clear()
 			onceValveTime.clear()
+		}
 
 		inTicker = false
 	}