Remove some deprecated methods

src/pocketmine/Server.php

@@ -556,14 +556,6 @@ class Server{
 		return $this->getConfigInt("spawn-protection", 16);
 	}
 
-	/**
-	 * @deprecated
-	 * @return bool
-	 */
-	public function getAllowFlight() : bool{
-		return true;
-	}
-
 	/**
 	 * @return bool
 	 */

src/pocketmine/level/Level.php

@@ -631,16 +631,6 @@ class Level implements ChunkManager, Metadatable{
 		$this->globalPackets[] = $packet;
 	}
 
-	/**
-	 * @deprecated
-	 * @see Level::broadcastGlobalPacket()
-	 *
-	 * @param DataPacket $packet
-	 */
-	public function addGlobalPacket(DataPacket $packet) : void{
-		$this->globalPackets[] = $packet;
-	}
-
 	public function registerChunkLoader(ChunkLoader $loader, int $chunkX, int $chunkZ, bool $autoLoad = true){
 		$hash = $loader->getLoaderId();
 

src/pocketmine/plugin/PluginManager.php

@@ -524,18 +524,6 @@ class PluginManager{
 		$this->fileAssociations = [];
 	}
 
-	/**
-	 * Calls an event
-	 *
-	 * @deprecated
-	 * @see Event::call()
-	 *
-	 * @param Event $event
-	 */
-	public function callEvent(Event $event){
-		$event->call();
-	}
-
 	/**
 	 * Registers all the events in the given Listener class
 	 *