Internal: Remove deprecated calls use only $em->flush();

public/main/inc/lib/usermanager.lib.php

@@ -351,7 +351,7 @@ class UserManager
         }
 
         $em->persist($user);
-        $em->flush($user);
+        $em->flush();
 
         $userId = $user->getId();
 
@@ -6138,7 +6138,7 @@ SQL;
             }
         }
         $em->persist($user);
-        $em->flush($user);
+        $em->flush();
         Event::addEvent(LOG_USER_ANONYMIZE, LOG_USER_ID, $userId);
 
         return true;

src/CoreBundle/EventListener/OnlineListener.php

@@ -51,8 +51,8 @@ class OnlineListener
             if ($user instanceof User && $user->getLastLogin() < $delay) {
                 // User
                 $user->setLastLogin(new DateTime());
-
-                $this->em->flush($user);
+                $this->em->persist($user);
+                $this->em->flush();
             }
         }
     }

src/CourseBundle/Entity/CTool.php

@@ -268,7 +268,7 @@ class CTool extends AbstractResource implements ResourceInterface
         $em = $args->getEntityManager();
         $this->setId($this->iid);
         $em->persist($this);
-        $em->flush($this);
+        $em->flush();
     }
 
     public function getPosition()