deps: remove readable-stream

lib/tracker-stream.js

@@ -1,5 +1,5 @@
 'use strict'
-const stream = require('readable-stream')
+const stream = require('stream')
 const delegate = require('delegates')
 const Tracker = require('./tracker.js')
 

package.json

@@ -29,8 +29,7 @@
     "tap": "^16.0.1"
   },
   "dependencies": {
-    "delegates": "^1.0.0",
-    "readable-stream": "^4.1.0"
+    "delegates": "^1.0.0"
   },
   "files": [
     "bin/",

test/lib/trackerstream.js

@@ -1,7 +1,7 @@
 'use strict'
 var test = require('tap').test
 var util = require('util')
-var stream = require('readable-stream')
+var stream = require('stream')
 var TrackerStream = require('../..').TrackerStream
 var testEvent = require('./test-event.js')