Update getStatsMetadata

Test: GTS Tests
Bug: 146384074
Change-Id: I263489874616d4ed5d16f2796fa74c740059a35a
diff --git a/cmds/statsd/src/StatsService.h b/cmds/statsd/src/StatsService.h
index 0565f3c..9d70265 100644
--- a/cmds/statsd/src/StatsService.h
+++ b/cmds/statsd/src/StatsService.h
@@ -106,8 +106,7 @@
     /**
      * Binder call for clients to get metadata across all configs in statsd.
      */
-    virtual Status getMetadata(const String16& packageName,
-                               vector<uint8_t>* output) override;
+    virtual Status getMetadata(vector<uint8_t>* output) override;
 
 
     /**