Remove unused basebuild files

Issue-ID: CIMAN-1
Change-Id: I7bab1f7829d1d059060679d8298ebae39cd7bee4
Signed-off-by: Thanh Ha <thanh.ha@linuxfoundation.org>
diff --git a/packer/provision/basebuild/.dummy b/packer/provision/basebuild/.dummy
deleted file mode 100644
index e69de29..0000000
--- a/packer/provision/basebuild/.dummy
+++ /dev/null