Remove unused code in tempest files

- test_floating_ips_actions.py
- test_list_floating_ips.py

Change-Id: I5b8a59a8c1c4f49c703a67e3181a792f4f4edb7e
Closes-Bug: #1251090
diff --git a/tempest/api/compute/floating_ips/test_floating_ips_actions.py b/tempest/api/compute/floating_ips/test_floating_ips_actions.py
index 21a2256..a06309a 100644
--- a/tempest/api/compute/floating_ips/test_floating_ips_actions.py
+++ b/tempest/api/compute/floating_ips/test_floating_ips_actions.py
@@ -37,7 +37,6 @@
         # Server creation
         resp, server = cls.create_test_server(wait_until='ACTIVE')
         cls.server_id = server['id']
-        resp, body = cls.servers_client.get_server(server['id'])
         # Floating IP creation
         resp, body = cls.client.create_floating_ip()
         cls.floating_ip_id = body['id']
diff --git a/tempest/api/compute/floating_ips/test_list_floating_ips.py b/tempest/api/compute/floating_ips/test_list_floating_ips.py
index 7fec2d1..6387f4e 100644
--- a/tempest/api/compute/floating_ips/test_list_floating_ips.py
+++ b/tempest/api/compute/floating_ips/test_list_floating_ips.py
@@ -32,7 +32,6 @@
         cls.client = cls.floating_ips_client
         cls.floating_ip = []
         cls.floating_ip_id = []
-        cls.random_number = 0
         for i in range(3):
             resp, body = cls.client.create_floating_ip()
             cls.floating_ip.append(body)