strip extra blank lines (php-cs-fixer)

src/pocketmine/level/generator/Generator.php

@@ -59,7 +59,6 @@ abstract class Generator{
 	 */
 	abstract public function __construct(array $settings = []);
 
-
 	public function init(ChunkManager $level, Random $random) : void{
 		$this->level = $level;
 		$this->random = $random;

src/pocketmine/level/generator/noise/Noise.php

@@ -26,7 +26,6 @@ declare(strict_types=1);
  */
 namespace pocketmine\level\generator\noise;
 
-
 use function array_fill;
 use function assert;
 

src/pocketmine/level/generator/noise/Perlin.php

@@ -33,7 +33,6 @@ class Perlin extends Noise{
 		[0, 1, 1], [0, -1, 1], [0, 1, -1], [0, -1, -1]
 	];
 
-
 	/**
 	 * @param int    $octaves
 	 * @param float  $persistence

src/pocketmine/level/generator/noise/Simplex.php

@@ -82,7 +82,6 @@ class Simplex extends Perlin{
 	/** @var float */
 	protected $offsetW;
 
-
 	/**
 	 * @param int    $octaves
 	 * @param float  $persistence

src/pocketmine/level/generator/object/PopulatorObject.php

@@ -26,7 +26,6 @@ declare(strict_types=1);
  */
 namespace pocketmine\level\generator\object;
 
-
 abstract class PopulatorObject{
 
 }

src/pocketmine/level/generator/object/Tree.php

@@ -84,7 +84,6 @@ abstract class Tree{
 		}
 	}
 
-
 	public function canPlaceObject(ChunkManager $level, int $x, int $y, int $z, Random $random) : bool{
 		$radiusToCheck = 0;
 		for($yy = 0; $yy < $this->treeHeight + 3; ++$yy){