Revert "Update switch-version.sh (#114)"

This reverts commit 7fea13c.

Author: kbabanakov

scripts/switch-version.sh

@@ -7,7 +7,11 @@ if [ -z "${VERSION}" ]; then
     exit 1
 fi
 
-LICENSE="BDBkMTllNTkxYmJlNDRlN2U5ZWYyM2YzZDRmN2YwY2FmAAAAAAAAAAAEAAAAAAAAACgwNQIZALfDACVybqBaHxUHdjHEfTPECqOfdquMVwIYUKDroCKPtLk0qAuwzFHh5L6GxwTw9vDzAA=="
+LICENSE="${2:-}"
+if [ -z "${LICENSE}" ]; then
+    echo "Usage: $0 <version> <license>"
+    exit 1
+fi
 
 sdb-admin -y delete-node --all
 sdb-deploy -y uninstall --all-versions