Strip empty lines at the end of classes

src/pocketmine/level/generator/hell/Nether.php

@@ -131,5 +131,4 @@ class Nether extends Generator{
 	public function getSpawn() : Vector3{
 		return new Vector3(127.5, 128, 127.5);
 	}
-
 }

src/pocketmine/level/generator/normal/Normal.php

@@ -248,5 +248,4 @@ class Normal extends Generator{
 	public function getSpawn() : Vector3{
 		return new Vector3(127.5, 128, 127.5);
 	}
-
 }

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

@@ -82,6 +82,4 @@ class BigTree extends Tree{
 		}
 		*/
 	}
-
-
 }

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

@@ -97,5 +97,4 @@ class Ore{
 			}
 		}
 	}
-
 }

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

@@ -44,5 +44,4 @@ class Pond{
 	public function placeObject(ChunkManager $level, Vector3 $pos){
 
 	}
-
 }

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

@@ -79,6 +79,4 @@ class SpruceTree extends Tree{
 			}
 		}
 	}
-
-
 }