Generator: remove useless function getName()

src/pocketmine/level/generator/Flat.php

@@ -52,10 +52,6 @@ class Flat extends Generator{
 	/** @var string */
 	private $preset;
 
-	public function getName() : string{
-		return "flat";
-	}
-
 	/**
 	 * @param ChunkManager $level
 	 * @param int          $seed

src/pocketmine/level/generator/Generator.php

@@ -85,7 +85,5 @@ abstract class Generator{
 		return $this->options;
 	}
 
-	abstract public function getName() : string;
-
 	abstract public function getSpawn() : Vector3;
 }

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

@@ -79,10 +79,6 @@ class Nether extends Generator{
 		$this->populators[] = $ores;*/
 	}
 
-	public function getName() : string{
-		return "nether";
-	}
-
 	public function generateChunk(int $chunkX, int $chunkZ) : void{
 		$this->random->setSeed(0xdeadbeef ^ ($chunkX << 8) ^ $chunkZ ^ $this->seed);
 

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

@@ -150,10 +150,6 @@ class Normal extends Generator{
 		}
 	}
 
-	public function getName() : string{
-		return "normal";
-	}
-
 	private function pickBiome(int $x, int $z) : Biome{
 		$hash = $x * 2345803 ^ $z * 9236449 ^ $this->seed;
 		$hash *= $hash + 223;