diff --git a/src/pocketmine/world/ChunkManager.php b/src/pocketmine/world/ChunkManager.php
index 7fb8524c6..129cee286 100644
--- a/src/pocketmine/world/ChunkManager.php
+++ b/src/pocketmine/world/ChunkManager.php
@@ -51,48 +51,6 @@ interface ChunkManager{
 	 */
 	public function setBlockAt(int $x, int $y, int $z, Block $block) : bool;
 
-	/**
-	 * Returns the raw block light level
-	 *
-	 * @param int $x
-	 * @param int $y
-	 * @param int $z
-	 *
-	 * @return int
-	 */
-	public function getBlockLightAt(int $x, int $y, int $z) : int;
-
-	/**
-	 * Sets the raw block light level
-	 *
-	 * @param int $x
-	 * @param int $y
-	 * @param int $z
-	 * @param int $level
-	 */
-	public function setBlockLightAt(int $x, int $y, int $z, int $level) : void;
-
-	/**
-	 * Returns the highest amount of sky light can reach the specified coordinates.
-	 *
-	 * @param int $x
-	 * @param int $y
-	 * @param int $z
-	 *
-	 * @return int
-	 */
-	public function getBlockSkyLightAt(int $x, int $y, int $z) : int;
-
-	/**
-	 * Sets the raw block sky light level.
-	 *
-	 * @param int $x
-	 * @param int $y
-	 * @param int $z
-	 * @param int $level
-	 */
-	public function setBlockSkyLightAt(int $x, int $y, int $z, int $level) : void;
-
 	/**
 	 * @param int  $chunkX
 	 * @param int  $chunkZ
diff --git a/src/pocketmine/world/SimpleChunkManager.php b/src/pocketmine/world/SimpleChunkManager.php
index 6705b0fe5..67d06a8d8 100644
--- a/src/pocketmine/world/SimpleChunkManager.php
+++ b/src/pocketmine/world/SimpleChunkManager.php
@@ -66,34 +66,6 @@ class SimpleChunkManager implements ChunkManager{
 		return false;
 	}
 
-	public function getBlockLightAt(int $x, int $y, int $z) : int{
-		if($this->terrainPointer->moveTo($x, $y, $z, false)){
-			return $this->terrainPointer->currentSubChunk->getBlockLight($x & 0xf, $y & 0xf, $z & 0xf);
-		}
-
-		return 0;
-	}
-
-	public function setBlockLightAt(int $x, int $y, int $z, int $level) : void{
-		if($this->terrainPointer->moveTo($x, $y, $z, false)){
-			$this->terrainPointer->currentSubChunk->setBlockLight($x & 0xf, $y & 0xf, $z & 0xf, $level);
-		}
-	}
-
-	public function getBlockSkyLightAt(int $x, int $y, int $z) : int{
-		if($this->terrainPointer->moveTo($x, $y, $z, false)){
-			return $this->terrainPointer->currentSubChunk->getBlockSkyLight($x & 0xf, $y & 0xf, $z & 0xf);
-		}
-
-		return 0;
-	}
-
-	public function setBlockSkyLightAt(int $x, int $y, int $z, int $level) : void{
-		if($this->terrainPointer->moveTo($x, $y, $z, false)){
-			$this->terrainPointer->currentSubChunk->setBlockSkyLight($x & 0xf, $y & 0xf, $z & 0xf, $level);
-		}
-	}
-
 	/**
 	 * @param int  $chunkX
 	 * @param int  $chunkZ