removed deprecated stuff WIP

src/Security/Passwords.php

@@ -46,10 +46,7 @@ public function hash(string $password): string
 			throw new Nette\InvalidArgumentException('Password can not be empty.');
 		}
 
-		$hash = isset($this)
-			? @password_hash($password, $this->algo, $this->options) // @ is escalated to exception
-			: @password_hash($password, PASSWORD_BCRYPT, func_get_args()[1] ?? []); // back compatibility with v2.x
-
+		$hash = @password_hash($password, $this->algo, $this->options); // @ is escalated to exception
 		if (!$hash) {
 			throw new Nette\InvalidStateException('Computed hash is invalid. ' . error_get_last()['message']);
 		}
@@ -71,8 +68,6 @@ public function verify(string $password, string $hash): bool
 	 */
 	public function needsRehash(string $hash): bool
 	{
-		return isset($this)
-			? password_needs_rehash($hash, $this->algo, $this->options)
-			: password_needs_rehash($hash, PASSWORD_BCRYPT, func_get_args()[1] ?? []); // back compatibility with v2.x
+		return password_needs_rehash($hash, $this->algo, $this->options);
 	}
 }