ITS: clear sensor queue at doStartSensorEvents.

bug: 233106086
Change-Id: Ied6c57f8dcc1c0a1df41227db5c0d5370c07cef4
diff --git a/apps/CtsVerifier/src/com/android/cts/verifier/camera/its/ItsService.java b/apps/CtsVerifier/src/com/android/cts/verifier/camera/its/ItsService.java
index 193ce0e..647371d 100644
--- a/apps/CtsVerifier/src/com/android/cts/verifier/camera/its/ItsService.java
+++ b/apps/CtsVerifier/src/com/android/cts/verifier/camera/its/ItsService.java
@@ -1039,6 +1039,7 @@
 
     private void doStartSensorEvents() throws ItsException {
         synchronized(mEventLock) {
+            mEvents.clear();
             mEventsEnabled = true;
         }
         mSocketRunnableObj.sendResponse("sensorEventsStarted", "");