minor bugs fix added

SOL002/VNFConfiguration-API/Configuration.robot

@@ -70,7 +70,7 @@ POST VNF Configuration - Method not implemented
     [Documentation]    Test ID: 6.3.1.1.5
     ...    Test title: POST VNF Configuration - Method not implemented
     ...    Test objective: The objective is to test that POST method is not allowed to create a new VNF configuration
-    ...    Pre-conditions: A VNF instance is instantiated. The VNF instance is alrseady configured
+    ...    Pre-conditions: none
     ...    Reference: Clause 9.4.2.3.1 - ETSI GS NFV-SOL 002 [2] v2.7.1
     ...    Config ID: Config_prod_VE
     ...    Applicability: none
@@ -82,7 +82,7 @@ PUT VNF Configuration - Method not implemented
     [Documentation]    Test ID: 6.3.1.1.6
     ...    Test title: PUT VNF Configuration - Method not implemented
     ...    Test objective: The objective is to test that PUT method is not allowed to modify an existing VNF configuration
-    ...    Pre-conditions:  A VNF instance is instantiated. The VNF instance is already configured
+    ...    Pre-conditions:  none
     ...    Reference: Clause 9.4.2.3.3 - ETSI GS NFV-SOL 002 [2] v2.7.1
     ...    Config ID: Config_prod_VE
     ...    Applicability: none
@@ -94,14 +94,13 @@ DELETE VNF Configuration - Method not implemented
     [Documentation]    Test ID: 6.3.1.1.7
     ...    Test title: Delete VNF Configuration - Method not implemented
     ...    Test objective: The objective is to test that DELETE method is not allowed to delete an existing VNF configuration
-    ...    Pre-conditions:  A VNF instance is instantiated. The VNF instance is already configured
+    ...    Pre-conditions:  none
     ...    Reference: Clause 9.4.2.3.5 - ETSI GS NFV-SOL 002 [2] v2.7.1
     ...    Config ID: Config_prod_VE
     ...    Applicability: none
-    ...    Post-Conditions: The VNF configuration is not deleted by the unsuccessful operation
+    ...    Post-Conditions: none
     Send DELETE Request for VNF Configuration
     Check HTTP Response Status Code Is    405
-    Check Postcondition VNF Configuration Exists
     
 *** Keywords ***    
 Get VNF configuration
@@ -145,10 +144,6 @@ Check HTTP Response Body Json Schema Is
 Check Postcondition VNF Configuration Unmodified (Implicit)
     Log    Check Implicit Postcondition
     Check Postcondition VNF Is Configured
-
-Check Postcondition VNF Configuration Exists
-    Log    Check Postcondition VNF exists
-    Check Postcondition VNF Is Configured
     
 Check Postcondition VNF Is Configured
     Log    Check Postcondition for VNF Configuration