NetworkSuggestionEvaluatorTest: Fix test flakiness

Bug: 127644378
Test: act.py -c wifi_manager_cross.config -tb dut-name -tc
WifiNetworkSuggestionTest

Change-Id: I13c0b5f44bc72812e40e12428239ca1518f59686
diff --git a/acts/tests/google/wifi/WifiNetworkSuggestionTest.py b/acts/tests/google/wifi/WifiNetworkSuggestionTest.py
index e3998c3..df68e1e 100755
--- a/acts/tests/google/wifi/WifiNetworkSuggestionTest.py
+++ b/acts/tests/google/wifi/WifiNetworkSuggestionTest.py
@@ -146,6 +146,7 @@
                     "Received post connection broadcast")
         finally:
             self.dut.droid.wifiStopTrackingNetworkSuggestionStateChange()
+        self.dut.ed.clear_all_events()
 
 
     @test_tracker_info(uuid="bda8ed20-4382-4380-831a-64cf77eca108")