Revert "Enable host discovery after recovering switch by default in SR tests"

This reverts commit 44e3923cede47d3e2cb0743dd152364ce798eb30.

Change-Id: I64a4155400bca0af7d4b12886c9069b5e52eac19
diff --git a/TestON/tests/USECASE/SegmentRouting/dependencies/Testcaselib.py b/TestON/tests/USECASE/SegmentRouting/dependencies/Testcaselib.py
index 0fc95ad..44055d3 100644
--- a/TestON/tests/USECASE/SegmentRouting/dependencies/Testcaselib.py
+++ b/TestON/tests/USECASE/SegmentRouting/dependencies/Testcaselib.py
@@ -650,7 +650,7 @@
                                  onfail="Failed to kill switch?" )
 
     @staticmethod
-    def recoverSwitch( main, switch, switches, links, rediscoverHosts=True ):
+    def recoverSwitch( main, switch, switches, links, rediscoverHosts=False ):
         """
         Params: switches, links: number of expected switches and links after SwitchUp, ex.: '4', '6'
         Recover a switch and verify ONOS can see the proper change