diff --git a/src/network/mcpe/NetworkSession.php b/src/network/mcpe/NetworkSession.php
index 53fe430f9..ebc943960 100644
--- a/src/network/mcpe/NetworkSession.php
+++ b/src/network/mcpe/NetworkSession.php
@@ -129,7 +129,6 @@ use function array_values;
 use function base64_encode;
 use function bin2hex;
 use function count;
-use function function_exists;
 use function get_class;
 use function hrtime;
 use function in_array;
@@ -143,7 +142,6 @@ use function strtolower;
 use function substr;
 use function time;
 use function ucfirst;
-use function xdebug_is_debugger_active;
 use const JSON_THROW_ON_ERROR;
 use const SORT_NUMERIC;