diff --git a/src/pocketmine/level/Level.php b/src/pocketmine/level/Level.php
index a3aa0e7b5..4e66e9e94 100644
--- a/src/pocketmine/level/Level.php
+++ b/src/pocketmine/level/Level.php
@@ -846,25 +846,6 @@ class Level implements ChunkManager, Metadatable{
 		$this->sleepTicks = $ticks;
 	}
 
-	/**
-	 * @deprecated
-	 *
-	 * @param int           $x
-	 * @param int           $y
-	 * @param int           $z
-	 * @param int           $id
-	 * @param int           $data
-	 * @param Player[]|null $targets
-	 */
-	public function sendBlockExtraData(int $x, int $y, int $z, int $id, int $data, array $targets = null){
-		$pk = new LevelEventPacket;
-		$pk->evid = LevelEventPacket::EVENT_SET_DATA;
-		$pk->position = new Vector3($x, $y, $z);
-		$pk->data = ($data << 8) | $id;
-
-		$this->server->broadcastPacket($targets ?? $this->getChunkPlayers($x >> 4, $z >> 4), $pk);
-	}
-
 	/**
 	 * @param Player[] $target
 	 * @param Block[]  $blocks
@@ -2136,37 +2117,6 @@ class Level implements ChunkManager, Metadatable{
 		}
 	}
 
-	/**
-	 * @deprecated This functionality no longer produces any effect and will be removed in a future release
-	 *
-	 * Gets the raw block extra data
-	 *
-	 * @param int $x
-	 * @param int $y
-	 * @param int $z
-	 *
-	 * @return int 16-bit
-	 */
-	public function getBlockExtraDataAt(int $x, int $y, int $z) : int{
-		return $this->getChunk($x >> 4, $z >> 4, true)->getBlockExtraData($x & 0x0f, $y, $z & 0x0f);
-	}
-
-	/**
-	 * @deprecated This functionality no longer produces any effect and will be removed in a future release
-	 * Sets the raw block metadata.
-	 *
-	 * @param int $x
-	 * @param int $y
-	 * @param int $z
-	 * @param int $id
-	 * @param int $data
-	 */
-	public function setBlockExtraDataAt(int $x, int $y, int $z, int $id, int $data){
-		$this->getChunk($x >> 4, $z >> 4, true)->setBlockExtraData($x & 0x0f, $y, $z & 0x0f, ($data << 8) | $id);
-
-		$this->sendBlockExtraData($x, $y, $z, $id, $data);
-	}
-
 	/**
 	 * Gets the raw block metadata
 	 *
diff --git a/src/pocketmine/level/format/Chunk.php b/src/pocketmine/level/format/Chunk.php
index 4c20ffbbe..dbd6cfc36 100644
--- a/src/pocketmine/level/format/Chunk.php
+++ b/src/pocketmine/level/format/Chunk.php
@@ -81,9 +81,6 @@ class Chunk{
 	/** @var string */
 	protected $biomeIds;
 
-	/** @var int[] */
-	protected $extraData = [];
-
 	/** @var CompoundTag[] */
 	protected $NBTtiles = [];
 
@@ -98,9 +95,8 @@ class Chunk{
 	 * @param CompoundTag[]       $tiles
 	 * @param string              $biomeIds
 	 * @param int[]               $heightMap
-	 * @param int[]               $extraData @deprecated
 	 */
-	public function __construct(int $chunkX, int $chunkZ, array $subChunks = [], array $entities = [], array $tiles = [], string $biomeIds = "", array $heightMap = [], array $extraData = []){
+	public function __construct(int $chunkX, int $chunkZ, array $subChunks = [], array $entities = [], array $tiles = [], string $biomeIds = "", array $heightMap = []){
 		$this->x = $chunkX;
 		$this->z = $chunkZ;
 
@@ -128,8 +124,6 @@ class Chunk{
 			$this->biomeIds = str_repeat("\x00", 256);
 		}
 
-		$this->extraData = $extraData;
-
 		$this->NBTtiles = $tiles;
 		$this->NBTentities = $entities;
 	}
@@ -254,37 +248,6 @@ class Chunk{
 		}
 	}
 
-	/**
-	 * @deprecated This functionality no longer produces any visible effects and will be removed in a future release
-	 *
-	 * @param int $x 0-15
-	 * @param int $y
-	 * @param int $z 0-15
-	 *
-	 * @return int bitmap, (meta << 8) | id
-	 */
-	public function getBlockExtraData(int $x, int $y, int $z) : int{
-		return $this->extraData[Chunk::chunkBlockHash($x, $y, $z)] ?? 0;
-	}
-
-	/**
-	 * @deprecated This functionality no longer produces any visible effects and will be removed in a future release
-	 *
-	 * @param int $x 0-15
-	 * @param int $y
-	 * @param int $z 0-15
-	 * @param int $data bitmap, (meta << 8) | id
-	 */
-	public function setBlockExtraData(int $x, int $y, int $z, int $data){
-		if($data === 0){
-			unset($this->extraData[Chunk::chunkBlockHash($x, $y, $z)]);
-		}else{
-			$this->extraData[Chunk::chunkBlockHash($x, $y, $z)] = $data;
-		}
-
-		$this->hasChanged = true;
-	}
-
 	/**
 	 * Returns the sky light level at the specified chunk block coordinates
 	 *
@@ -779,14 +742,6 @@ class Chunk{
 		return $this->heightMap;
 	}
 
-	/**
-	 * @deprecated
-	 * @return int[]
-	 */
-	public function getBlockExtraDataArray() : array{
-		return $this->extraData;
-	}
-
 	/**
 	 * @return bool
 	 */
@@ -970,21 +925,4 @@ class Chunk{
 		$chunk->terrainGenerated = (bool) ($flags & 1);
 		return $chunk;
 	}
-
-	/**
-	 * @deprecated This will be removed in a future release
-	 *
-	 * Creates a block hash from chunk block coordinates. Used for extra data keys in chunk packets.
-	 * @internal
-	 *
-	 * @param int $x 0-15
-	 * @param int $y 0-255
-	 * @param int $z 0-15
-	 *
-	 * @return int
-	 */
-	public static function chunkBlockHash(int $x, int $y, int $z) : int{
-		return ($x << 12) | ($z << 8) | $y;
-	}
-
 }
diff --git a/src/pocketmine/level/format/io/leveldb/LevelDB.php b/src/pocketmine/level/format/io/leveldb/LevelDB.php
index 21580fd8b..fe444557a 100644
--- a/src/pocketmine/level/format/io/leveldb/LevelDB.php
+++ b/src/pocketmine/level/format/io/leveldb/LevelDB.php
@@ -448,19 +448,8 @@ class LevelDB extends BaseLevelProvider{
 
 		$this->db->put($index . self::TAG_DATA_2D, pack("v*", ...$chunk->getHeightMapArray()) . $chunk->getBiomeIdArray());
 
-		$extraData = $chunk->getBlockExtraDataArray();
-		if(count($extraData) > 0){
-			$stream = new BinaryStream();
-			$stream->putLInt(count($extraData));
-			foreach($extraData as $key => $value){
-				$stream->putLInt($key);
-				$stream->putLShort($value);
-			}
-
-			$this->db->put($index . self::TAG_BLOCK_EXTRA_DATA, $stream->getBuffer());
-		}else{
-			$this->db->delete($index . self::TAG_BLOCK_EXTRA_DATA);
-		}
+		//this has been superseded by multi-layer block storages in 1.2.14+
+		$this->db->delete($index . self::TAG_BLOCK_EXTRA_DATA);
 
 		//TODO: use this properly
 		$this->db->put($index . self::TAG_STATE_FINALISATION, chr(self::FINALISATION_DONE));