<!--- Verify first that your issue is not already reported on GitHub -->
<!--- Also test if the latest release and devel branch are affected too -->
<!--- Complete *all* sections as described, this form is processed automatically -->

##### SUMMARY
<!--- Explain the problem briefly below -->
OpenStack load balancer deletion failed:

```
TASK [delete lb] ***************************************************************************************************************************************************************************************************************************
fatal: [localhost]: FAILED! => {
    "changed": false,
    "extra_data": null
}

MSG:

No LoadBalancer found for 730c776d-d6ac-448c-95f8-4727491b297d: Client Error for url: http://192.168.206.8/load-balancer/v2.0/lbaas/loadbalancers/730c776d-d6ac-448c-95f8-4727491b297d, Not Found
```

##### ISSUE TYPE
- Bug Report

##### COMPONENT NAME
<!--- Write the short name of the module, plugin, task or feature below, use your best guess if unsure -->
os_loadbalancer

##### ANSIBLE VERSION
<!--- Paste verbatim output from "ansible --version" between quotes -->
```paste below
ansible 2.9.0.dev0
  config file = /etc/ansible/ansible.cfg
  configured module search path = [u'/home/lingxiankong/.ansible/plugins/modules', u'/usr/share/ansible/plugins/modules']
  ansible python module location = /home/lingxiankong/code/github/ansible/lib/ansible
  executable location = /home/lingxiankong/code/github/ansible/bin/ansible
  python version = 2.7.12 (default, Nov 12 2018, 14:36:49) [GCC 5.4.0 20160609]
```

##### CONFIGURATION
<!--- Paste verbatim output from "ansible-config dump --only-changed" between quotes -->
```paste below
DEFAULT_STDOUT_CALLBACK(/etc/ansible/ansible.cfg) = debug
```

##### OS / ENVIRONMENT
<!--- Provide all relevant information below, e.g. target OS versions, network device firmware, etc. -->
```
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 16.04.5 LTS
Release:        16.04
Codename:       xenial
```

##### STEPS TO REPRODUCE
<!--- Describe exactly how to reproduce the problem, using a minimal test-case -->

<!--- Paste example playbooks or commands between quotes below -->
```yaml
- name: test delete lb
  connection: local
  hosts: localhost
  tasks:
    - name: delete lb
      os_loadbalancer:
        name: lingxiank8s-lb
        state: absent
        wait: yes
        timeout: 600
```

<!--- HINT: You can paste gist.github.com links for larger files -->

##### EXPECTED RESULTS
<!--- Describe what you expected to happen when running the steps above -->
the load balancer is deleted successfully.

##### ACTUAL RESULTS
<!--- Describe what actually happened. If possible run with extra verbosity (-vvvv) -->

<!--- Paste verbatim command output between quotes -->
```paste below
TASK [delete lb] ***************************************************************************************************************************************************************************************************************************
fatal: [localhost]: FAILED! => {
    "changed": false,
    "extra_data": null
}

MSG:

No LoadBalancer found for 730c776d-d6ac-448c-95f8-4727491b297d: Client Error for url: http://192.168.206.8/load-balancer/v2.0/lbaas/loadbalancers/730c776d-d6ac-448c-95f8-4727491b297d, Not Found
```

sample: "c53e3c70-9d62-409a-9f71-db148e7aa853"
        vip_port_id:
            description: The load balancer virutal IP port ID.
            type: str
            sample: "2061395c-1c01-47ab-b925-c91b93df9c1d"
        vip_address:
            description: The load balancer virutal IP address.
            type: str
            sample: "192.168.2.88"
        public_vip_address:
            description: The load balancer public VIP address.
            type: str
            sample: "10.17.8.254"
        provisioning_status:
            description: The provisioning status of the load balancer.
            type: str
            sample: "ACTIVE"
        operating_status:
            description: The operating status of the load balancer.
            type: str
            sample: "ONLINE"
        is_admin_state_up:
            description: The administrative state of the load balancer.
            type: bool
            sample: true
        listeners:
            description: The associated listener IDs, if any.
            type: list
            sample: [{"id": "7aa1b380-beec-459c-a8a7-3a4fb6d30645"}, {"id": "692d06b8-c4f8-4bdb-b2a3-5a263cc23ba6"}]
        pools: