fix another undocumented case related to networks

Signed-off-by: szaimen <szaimen@e.mail.de>

php/src/Docker/DockerActionManager.php

@@ -414,9 +414,6 @@ class DockerActionManager
                 ]
             );
         } catch (RequestException $e) {
-            if ($e->getCode() !== 404) {
-                throw $e;
-            }
         }
     }