Change default for FORCE_CONFIG_DRIVE

We really should be using the metadata server more in our normal
testing, this changes the default to use it.

Change-Id: I8ef14e6110da1160163c0106e32032d27226f929
diff --git a/lib/nova b/lib/nova
index e187220..235b533 100644
--- a/lib/nova
+++ b/lib/nova
@@ -83,7 +83,7 @@
 
 # Option to enable/disable config drive
 # NOTE: Set ``FORCE_CONFIG_DRIVE="False"`` to turn OFF config drive
-FORCE_CONFIG_DRIVE=${FORCE_CONFIG_DRIVE:-"True"}
+FORCE_CONFIG_DRIVE=${FORCE_CONFIG_DRIVE:-"False"}
 
 # Nova supports pluggable schedulers.  The default ``FilterScheduler``
 # should work in most cases.