Change goloxi dependency to opencord/goloxi.

Remove explicit length calculation.

Change-Id: Ie3c7643ed0d1e076e85f050d2b3e354b77b9eb0f
diff --git a/vendor/github.com/opencord/goloxi/go.mod b/vendor/github.com/opencord/goloxi/go.mod
new file mode 100644
index 0000000..c19bf71
--- /dev/null
+++ b/vendor/github.com/opencord/goloxi/go.mod
@@ -0,0 +1,5 @@
+// empty go.mod file required to trigger go-based tag format
+// for tagged releases
+module github.com/opencord/goloxi
+
+go 1.13