diff --git a/phpBB/includes/acp/acp_users.php b/phpBB/includes/acp/acp_users.php
index f8c5f9dc48..fa9709194b 100644
--- a/phpBB/includes/acp/acp_users.php
+++ b/phpBB/includes/acp/acp_users.php
@@ -738,8 +738,6 @@ class acp_users
 					$error = preg_replace('#^([A-Z_]+)$#e', "(!empty(\$user->lang['\\1'])) ? \$user->lang['\\1'] : '\\1'", $error);
 				}
 
-				$user_char_ary = array('.*' => 'USERNAME_CHARS_ANY', '[a-z]+' => 'USERNAME_ALPHA_ONLY', '[-\]_+ [a-z]+' => 'USERNAME_ALPHA_SPACERS', '\w+' => 'USERNAME_LETTER_NUM', '[-\]_+ [\w]+' => 'USERNAME_LETTER_NUM_SPACERS', '[\x01-\x7F]+' => 'USERNAME_ASCII');
-
 				if ($user_id == $user->data['user_id'])
 				{
 					$quick_tool_ary = array('delsig' => 'DEL_SIG', 'delavatar' => 'DEL_AVATAR', 'moveposts' => 'MOVE_POSTS', 'delposts' => 'DEL_POSTS', 'delattach' => 'DEL_ATTACH');