Fixed set mtu for deleted subintf due to late notification#4

EdenGri wants to merge 2 commits intomasterEdenGri/sonic-swss:masterfrom

Fixed__set_mtu_for_deleted_subintf_due_to_late_notifEdenGri/sonic-swss:Fixed__set_mtu_for_deleted_subintf_due_to_late_notifCopy head branch name to clipboard