minor fix to remove temp config file

Test: cts test
Change-Id: I9f83f22a1dec28494aeedd807cc8ea3955d5555c
diff --git a/hostsidetests/statsd/src/android/cts/statsd/AtomTestCase.java b/hostsidetests/statsd/src/android/cts/statsd/AtomTestCase.java
index f591a05..4f52315 100644
--- a/hostsidetests/statsd/src/android/cts/statsd/AtomTestCase.java
+++ b/hostsidetests/statsd/src/android/cts/statsd/AtomTestCase.java
@@ -103,6 +103,7 @@
 
     protected void uploadConfig(StatsdConfig config) throws Exception {
         File configFile = File.createTempFile("statsdconfig", ".config");
+        configFile.deleteOnExit();
         Files.write(config.toByteArray(), configFile);
         String remotePath = "/data/" + configFile.getName();
         getDevice().pushFile(configFile, remotePath);