Don't warn about heat modifying flavors

Since de0898a Heat no longer modifies flavors, so the comment
and output related to modified flavors is no longer needed.

Change-Id: I1007d2ab3387f28b8d7487f450cab4592f2824aa
diff --git a/stack.sh b/stack.sh
index e45707b..1dc4b74 100755
--- a/stack.sh
+++ b/stack.sh
@@ -1181,7 +1181,7 @@
 
 # Configure and launch heat engine, api and metadata
 if is_service_enabled heat; then
-    # Initialize heat, including replacing nova flavors
+    # Initialize heat
     echo_summary "Configuring Heat"
     init_heat
     echo_summary "Starting Heat"
@@ -1350,11 +1350,6 @@
     echo "Horizon is now available at http://$SERVICE_HOST/"
 fi
 
-# Warn that the default flavors have been changed by Heat
-if is_service_enabled heat; then
-    echo "Heat has replaced the default flavors. View by running: nova flavor-list"
-fi
-
 # If Keystone is present you can point ``nova`` cli to this server
 if is_service_enabled key; then
     echo "Keystone is serving at $KEYSTONE_AUTH_PROTOCOL://$SERVICE_HOST:$KEYSTONE_SERVICE_PORT/v2.0/"