Remove unused deprecated stuff

src/block/tile/Sign.php

@@ -32,9 +32,6 @@ use pocketmine\nbt\tag\IntTag;
 use pocketmine\nbt\tag\StringTag;
 use pocketmine\utils\Binary;
 use pocketmine\world\World;
-use function array_pad;
-use function array_slice;
-use function explode;
 use function implode;
 use function mb_scrub;
 use function sprintf;
@@ -60,14 +57,6 @@ class Sign extends Spawnable{
 	public const TAG_WAXED = "IsWaxed"; //TAG_Byte
 	public const TAG_LOCKED_FOR_EDITING_BY = "LockedForEditingBy"; //TAG_Long
 
-	/**
-	 * @return string[]
-	 * @deprecated
-	 */
-	public static function fixTextBlob(string $blob) : array{
-		return array_slice(array_pad(explode("\n", $blob, limit: 5), 4, ""), 0, 4);
-	}
-
 	protected SignText $text;
 	private bool $waxed = false;
 

src/crafting/CraftingManager.php

@@ -102,17 +102,6 @@ class CraftingManager{
 	/** @phpstan-return ObjectSet<\Closure() : void> */
 	public function getRecipeRegisteredCallbacks() : ObjectSet{ return $this->recipeRegisteredCallbacks; }
 
-	/**
-	 * Function used to arrange Shapeless Recipe ingredient lists into a consistent order.
-	 * @deprecated
-	 */
-	public static function sort(Item $i1, Item $i2) : int{
-		//Use spaceship operator to compare each property, then try the next one if they are equivalent.
-		($retval = $i1->getStateId() <=> $i2->getStateId()) === 0 && ($retval = $i1->getCount() <=> $i2->getCount()) === 0;
-
-		return $retval;
-	}
-
 	private static function hashOutput(Item $output) : string{
 		$write = new BinaryStream();
 		$write->putVarInt($output->getStateId());

src/utils/Process.php

@@ -125,24 +125,18 @@ final class Process{
 		return Thread::getRunningCount() + 1; //pmmpthread doesn't count the main thread
 	}
 
-	/**
-	 * @param bool $subprocesses @deprecated
-	 */
-	public static function kill(int $pid, bool $subprocesses = false) : void{
+	public static function kill(int $pid) : void{
 		$logger = \GlobalLogger::get();
 		if($logger instanceof MainLogger){
 			$logger->syncFlushBuffer();
 		}
 		switch(Utils::getOS()){
 			case Utils::OS_WINDOWS:
-				exec("taskkill.exe /F " . ($subprocesses ? "/T " : "") . "/PID $pid > NUL 2> NUL");
+				exec("taskkill.exe /F /PID $pid > NUL 2> NUL");
 				break;
 			case Utils::OS_MACOS:
 			case Utils::OS_LINUX:
 			default:
-				if($subprocesses){
-					$pid = -$pid;
-				}
 				if(function_exists("posix_kill")){
 					posix_kill($pid, 9); //SIGKILL
 				}else{

src/utils/Utils.php

@@ -165,16 +165,6 @@ final class Utils{
 		return $reflect->getName();
 	}
 
-	/**
-	 * @phpstan-return \Closure(object) : object
-	 * @deprecated
-	 */
-	public static function cloneCallback() : \Closure{
-		return static function(object $o){
-			return clone $o;
-		};
-	}
-
 	/**
 	 * @phpstan-template TKey of array-key
 	 * @phpstan-template TValue of object