Blue Ice: No longer emits light & it's now dropped when mined with a …

…tool with silk touch enchantment (#6438)

src/block/BlueIce.php

@@ -27,15 +27,15 @@
 
 class BlueIce extends Opaque{
 
-	public function getLightLevel() : int{
-		return 1;
-	}
-
 	public function getFrictionFactor() : float{
 		return 0.99;
 	}
 
 	public function getDropsForCompatibleTool(Item $item) : array{
 		return [];
 	}
+
+	public function isAffectedBySilkTouch() : bool{
+		return true;
+	}
 }