Fix box activity for php 8

annee doesn't exist so makes php error

htdocs/core/boxes/box_activity.php

@@ -329,7 +329,7 @@ class box_activity extends ModeleBoxes
 			if (!empty($data)) {
 				$j = 0;
 				while ($j < count($data)) {
-					$billurl = "search_status=2&amp;paye=1&amp;year=".$data[$j]->annee;
+					$billurl = "search_status=2&amp;paye=1";
 					$this->info_box_contents[$line][0] = array(
 						'td' => 'class="left" width="16"',
 						'tooltip' => $langs->trans('Bills').'&nbsp;'.$facturestatic->LibStatut(1, $data[$j]->fk_statut, 0),
@@ -339,7 +339,7 @@ class box_activity extends ModeleBoxes
 
 					$this->info_box_contents[$line][1] = array(
 						'td' => '',
-						'text' => $langs->trans("Bills")."&nbsp;".$facturestatic->LibStatut(1, $data[$j]->fk_statut, 0)." ".$data[$j]->annee,
+						'text' => $langs->trans("Bills")."&nbsp;".$facturestatic->LibStatut(1, $data[$j]->fk_statut, 0),
 					);
 
 					$this->info_box_contents[$line][2] = array(