Clean up robot test suite imports

Changes:
     - Remove resource file import to prevent cyclic reference

Tested:
     - Ran test suites to check they are working.

Change-Id: I492b6eeda0023a5156274653d7db13e7f127822c
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/redfish/service_root/test_service_root.robot b/redfish/service_root/test_service_root.robot
index 573cca3..a360c3f 100644
--- a/redfish/service_root/test_service_root.robot
+++ b/redfish/service_root/test_service_root.robot
@@ -1,7 +1,6 @@
 *** Settings ***
 Documentation    Test Redfish to verify responses for SessionService and Hypermedia.
 
-Resource         ../../lib/resource.robot
 Resource         ../../lib/bmc_redfish_resource.robot
 Resource         ../../lib/openbmc_ffdc.robot
 
diff --git a/redfish/service_root/test_service_root_security.robot b/redfish/service_root/test_service_root_security.robot
index be1149a..04520bc 100644
--- a/redfish/service_root/test_service_root_security.robot
+++ b/redfish/service_root/test_service_root_security.robot
@@ -1,7 +1,6 @@
 *** Settings ***
 Documentation    Test Redfish service root login security.
 
-Resource         ../../lib/resource.robot
 Resource         ../../lib/bmc_redfish_resource.robot
 Resource         ../../lib/openbmc_ffdc.robot
 
diff --git a/redfish/service_root/test_sessions_connection.robot b/redfish/service_root/test_sessions_connection.robot
index b97f214..1d619b5 100644
--- a/redfish/service_root/test_sessions_connection.robot
+++ b/redfish/service_root/test_sessions_connection.robot
@@ -2,8 +2,6 @@
 
 Documentation    Test Redfish session and its connection stability.
 
-Resource         ../../lib/resource.robot
-Resource         ../../lib/bmc_redfish_resource.robot
 Resource         ../../lib/bmc_redfish_utils.robot
 Resource         ../../lib/openbmc_ffdc.robot
 
diff --git a/redfish/service_root/test_sessions_management.robot b/redfish/service_root/test_sessions_management.robot
index e9085fa..ca07ddf 100644
--- a/redfish/service_root/test_sessions_management.robot
+++ b/redfish/service_root/test_sessions_management.robot
@@ -2,8 +2,6 @@
 
 Documentation    Test Redfish SessionService.
 
-Resource         ../../lib/resource.robot
-Resource         ../../lib/bmc_redfish_resource.robot
 Resource         ../../lib/bmc_redfish_utils.robot
 Resource         ../../lib/openbmc_ffdc.robot