Automation Fix for non-exist setting

To Address issue:
   Non-existing setting 'Test Teardown'
   Resource File cannot contain tests or tasks

Deleted import resource file:
   extended/code_update/update_bmc.robot

Change-Id: Id54eb3bb84ace44875e4a10d6560a17f6cdeae62
Signed-off-by: Sushil Singh <susilsi7@in.ibm.com>
diff --git a/redfish/update_service/test_redfish_signed_image_update.robot b/redfish/update_service/test_redfish_signed_image_update.robot
index e3153e2..086e449 100644
--- a/redfish/update_service/test_redfish_signed_image_update.robot
+++ b/redfish/update_service/test_redfish_signed_image_update.robot
@@ -16,7 +16,6 @@
 Resource                 ../../lib/common_utils.robot
 Resource                 ../../lib/code_update_utils.robot
 Resource                 ../../lib/redfish_code_update_utils.robot
-Resource                 ../../extended/code_update/update_bmc.robot
 Library                  ../../lib/gen_robot_valid.py
 Library                  ../../lib/var_funcs.py