Fix invalid XML

* authwithgroups.xml: Ending tag should be same as opening one
* endpoints.xml: Remove duplicate tenantID="1" attribute
* admin-actions-reset-state.*: Deleted, it's not used anywhere and
  looking at the names, the file admin-actions-reset-server-state
  handles this already
* ports-get-resp.xml: Fix XML code

Change-Id: Ia6b71c736ba92e170167db6ef7bf7f0158483e6a

api-ref/src/wadls/identity-api/src/v2.0/samples/authwithgroups.xml

@@ -67,4 +67,4 @@
             </group>
         </groups>
     </user>
-</auth>
+</access>

api-ref/src/wadls/identity-api/src/v2.0/samples/endpoints.xml

@@ -41,7 +41,6 @@
       publicURL="https://compute.north.public.com/v1"
       internalURL="https://compute.north.internal.com/v1"
       adminURL="https://compute.north.internal.com/v1"
-      tenantId="1"
   />
   <endpoint
       id="4"

api-ref/src/wadls/netconn-api/src/api_samples/ports-get-resp.xml

@@ -54,7 +54,7 @@
             <port_filter quantum:type="bool">False</port_filter>
         </binding:capabilities>
         <mac_address>fa:16:3e:2d:dc:7e</mac_address>
-        <fixed_ip>
+        <fixed_ips>
             <fixed_ip>
                 <subnet_id>a318fcb4-9ff0-4485-b78c-9e6738c21b26</subnet_id>
                 <ip_address>10.0.0.1</ip_address>