chore(xen-api): remove unused memory test

packages/xen-api/memory-test.gnu

@@ -1,4 +0,0 @@
-set yrange [ 0 : ]
-set grid
-
-plot for [i=2:4] "plot.dat" using 1:i with lines

packages/xen-api/src/memory-test.js

@@ -1,22 +0,0 @@
-#!/usr/bin/env node
-
-import { createClient } from './'
-
-let i = 0
-setInterval(() => {
-  const usage = process.memoryUsage()
-  console.log(
-    '%s %s %s %s',
-    i++,
-    Math.round(usage.rss / 1e6),
-    Math.round(usage.heapTotal / 1e6),
-    Math.round(usage.heapUsed / 1e6)
-  )
-}, 1e2)
-
-const [, , url, user, password] = process.argv
-createClient({
-  auth: { user, password },
-  readOnly: true,
-  url,
-}).connect()