Removing last trace of kind-voltha from helm charts

Change-Id: I11aea9308a2e4623d582718716c6595d44164acd
diff --git a/VERSION b/VERSION
index 80803fa..d578041 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.8.8
+2.8.9