Fixes #28779 eth_mode key error (#28782)

* Fixes #28779 eth_mode key error

* Remove unused get_config references

* Addressed PR comment

lib/ansible/modules/network/nxos/nxos_interface.py

@@ -141,7 +141,7 @@ commands:
     sample: ["interface port-channel101", "shutdown"]
 '''
 
-from ansible.module_utils.nxos import get_config, load_config, run_commands
+from ansible.module_utils.nxos import load_config, run_commands
 from ansible.module_utils.nxos import nxos_argument_spec, check_args
 from ansible.module_utils.basic import AnsibleModule
 
@@ -280,7 +280,7 @@ def get_interface(intf, module):
 
     if body:
         interface_table = body['TABLE_interface']['ROW_interface']
-        if interface_table['eth_mode'] == 'fex-fabric':
+        if interface_table.get('eth_mode') == 'fex-fabric':
             module.fail_json(msg='nxos_interface does not support interfaces with mode "fex-fabric"')
         intf_type = get_interface_type(intf)
         if intf_type in ['portchannel', 'ethernet']:
@@ -700,8 +700,6 @@ def main():
                     cmds.extend(cmds2)
                 end_state, is_default = smart_existing(module, intf_type,
                                                        normalized_interface)
-            else:
-                end_state = get_interfaces_dict(module)[interface_type]
             cmds = [cmd for cmd in cmds if cmd != 'configure']
 
     results['commands'] = cmds

test/units/modules/network/nxos/test_nxos_interface.py

@@ -37,13 +37,9 @@ class TestNxosInterfaceModule(TestNxosModule):
         self.mock_load_config = patch('ansible.modules.network.nxos.nxos_interface.load_config')
         self.load_config = self.mock_load_config.start()
 
-        self.mock_get_config = patch('ansible.modules.network.nxos.nxos_interface.get_config')
-        self.get_config = self.mock_get_config.start()
-
     def tearDown(self):
         self.mock_run_commands.stop()
         self.mock_load_config.stop()
-        self.mock_get_config.stop()
 
     def load_fixtures(self, commands=None, device=''):
         self.load_config.return_value = None