Remove AutoTerminateUEeNB() functions, use auto_exec to make CI always undeploy

ci-scripts/xml_files/container_sa_aerial_quectel.xml

@@ -36,6 +36,7 @@
                 000033
                 000222
                 222222
+                333333
         </TestCaseRequestedList>
         <TestCaseExclusionList></TestCaseExclusionList>
 
@@ -107,12 +108,14 @@
 
         <testCase id="000222">
                 <class>Detach_UE</class>
+                <always_exec>true</always_exec>
                 <desc>Detach Quectel</desc>
                 <id>up2-aerial</id>
         </testCase>
 
         <testCase id="222222">
                 <class>Undeploy_Object</class>
+                <always_exec>true</always_exec>
                 <desc>Undeploy gNB</desc>
                 <yaml_path>ci-scripts/yaml_files/sa_gnb_aerial</yaml_path>
                 <eNB_instance>0</eNB_instance>
@@ -120,5 +123,13 @@
                 <d_retx_th>20,100,100,100</d_retx_th>
                 <u_retx_th>20,100,100,100</u_retx_th>
         </testCase>
+
+        <testCase id="333333">
+                <class>Clean_Test_Server_Images</class>
+                <always_exec>true</always_exec>
+                <desc>Clean Test Images on Test Server</desc>
+                <test_svr_id>0</test_svr_id>
+        </testCase>
+
 </testCaseList>