Fix last commit to ensure test cleans up properly.

Change-Id: I7a47ba8eec810e1b7c76bdecee39e3f9c3bba38f
diff --git a/tests/tests/hardware/src/android/hardware/cts/helpers/ActivityResultMultiplexedLatch.java b/tests/tests/hardware/src/android/hardware/cts/helpers/ActivityResultMultiplexedLatch.java
index b5491a7..bfc59c4 100644
--- a/tests/tests/hardware/src/android/hardware/cts/helpers/ActivityResultMultiplexedLatch.java
+++ b/tests/tests/hardware/src/android/hardware/cts/helpers/ActivityResultMultiplexedLatch.java
@@ -111,7 +111,7 @@
     public void onActivityResult(int requestCode, int resultCode) {
         Entry entry;
         synchronized (mActivityEntries) {
-            entry = mActivityEntries.get(requestCode);
+            entry = mActivityEntries.remove(requestCode);
         }
         if (entry == null) {
             return;