Remove gmscore v4 to v9

Change-Id: I043d6dc5c6764fab824f6c5864df7ef78d283325
diff --git a/tools/run_on_app.py b/tools/run_on_app.py
index c775aa0..cdceb6b 100755
--- a/tools/run_on_app.py
+++ b/tools/run_on_app.py
@@ -390,7 +390,7 @@
 
 def get_version_and_data(options):
   if options.app == 'gmscore':
-    version = options.version or 'v9'
+    version = options.version or gmscore_data.LATEST_VERSION
     data = gmscore_data
   elif options.app == 'nest':
     version = options.version or '20180926'