Fix orch stuch when removing vlan member (#3294)#3295

Yang-Yongzhi wants to merge 3 commits intosonic-net:mastersonic-net/sonic-swss:masterfrom

Yang-Yongzhi:orch-stuck-when-remove-vlan-memberYang-Yongzhi/sonic-swss:orch-stuck-when-remove-vlan-memberCopy head branch name to clipboard