Interface which has dataplane can't be ignore

dataplane can be assigned to the same interface with other network,
so it can't be ignore and ip should not be clear

Change-Id: I8c725f20de28d3d0d9d062c38cf0ca01b05c9df1

code/daisy/daisy/api/backends/common.py

@@ -36,6 +36,7 @@ from daisy.api.backends.osinstall import osdriver
 import ConfigParser
 import copy
 import fcntl
+from oslo_utils import importutils
 
 STR_MASK = '*' * 8
 LOG = logging.getLogger(__name__)
@@ -1129,7 +1130,7 @@ def if_used_shared_storage(req, cluster_id):
             backend_disk = importutils.import_module(
                 'daisy.api.backends.%s.disk_array' % backend)
         except Exception:
-            return False
+            pass
         else:
             if hasattr(backend_disk, 'get_disk_array_info'):
                 disks_info = backend_disk.get_disk_array_info(req, cluster_id)

code/daisy/daisy/api/backends/osinstall/pxe/install.py

@@ -468,10 +468,6 @@ def _get_host_interfaces(host_info):
     for interface in interfaces:
         no_dup_networks = {}
         for assigned_network in interface['assigned_networks']:
-            if assigned_network['network_type'] == 'DATAPLANE':
-                assigned_network['ip'] = None
-                break
-
             # remove duplicates assigned networks
             if assigned_network.get('ip') not in no_dup_networks.keys() \
                     or assigned_network.get('network_type') == 'MANAGEMENT':