Block: Migrated all trivial drops code to getDropsForCompatibleTool()

getDrops() should now be overridden only for special cases. There are some non-trivial overrides left that are going to need some extra work to clean up.

src/pocketmine/block/BrownMushroomBlock.php

@@ -33,7 +33,7 @@ class BrownMushroomBlock extends RedMushroomBlock{
 		return "Brown Mushroom Block";
 	}
 
-	public function getDrops(Item $item) : array{
+	public function getDropsForCompatibleTool(Item $item) : array{
 		return [
 			Item::get(Item::BROWN_MUSHROOM, 0, mt_rand(0, 2))
 		];