[dts] [PATCH V1 3/3] tests/ice_limit_value_test: optimize scripts

[Hongbo Li <hongbox.li@intel.com>]

1.when the dpdk testpmd exits abnormally, the port will not be initialized, and sometimes
the test of other cases will be affected. therefore, after the test, should use quit to
close the dpdk testpmd normally to avoid the impact between cases.
2.the object named "self.session_third" is undefined, delete useless code.

Signed-off-by: Hongbo Li <hongbox.li@intel.com>
---
 tests/TestSuite_ice_limit_value_test.py | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/tests/TestSuite_ice_limit_value_test.py b/tests/TestSuite_ice_limit_value_test.py
index b75cea84..b5bc6dc2 100644
--- a/tests/TestSuite_ice_limit_value_test.py
+++ b/tests/TestSuite_ice_limit_value_test.py
@@ -1256,13 +1256,10 @@ class TestICELimitValue(TestCase):
 
     def tear_down(self):
         # destroy all flow rule on port 0
-        self.dut.kill_all()
-        self.destroy_env()
         if getattr(self, "session_secondary", None):
             self.dut.close_session(self.session_secondary)
-        if getattr(self, "session_third", None):
-            self.dut.close_session(self.session_third)
+        self.destroy_env()
+        self.dut.kill_all()
 
     def tear_down_all(self):
         self.dut.kill_all()
-        self.destroy_env()
-- 
2.25.1