callstats: don't pass dependencies on the constructor

It's no longer needed, and it hasn't been for a while.

modules/statistics/CallStats.js

@@ -1,9 +1,7 @@
-/* global $, callstats */
+/* global callstats */
 const logger = require('jitsi-meet-logger').getLogger(__filename);
 const GlobalOnErrorHandler = require('../util/GlobalOnErrorHandler');
 
-const jsSHA = require('jssha');
-const io = require('socket.io-client');
 
 /**
  * We define enumeration of wrtcFuncNames as we need them before
@@ -336,8 +334,8 @@ export default class CallStats {
             throw new Error('CallStats backend has been initialized already!');
         }
         try {
-            CallStats.backend
-                = new callstats($, io, jsSHA); // eslint-disable-line new-cap
+            // eslint-disable-next-line new-cap
+            CallStats.backend = new callstats();
 
             CallStats._traceAndCatchBackendCalls(CallStats.backend);
 

package.json

@@ -19,12 +19,10 @@
     "async": "0.9.0",
     "current-executing-script": "0.1.3",
     "jitsi-meet-logger": "jitsi/jitsi-meet-logger",
-    "jssha": "1.5.0",
     "retry": "0.6.1",
     "sdp-interop": "0.1.12",
     "sdp-simulcast": "0.2.1",
     "sdp-transform": "2.3.0",
-    "socket.io-client": "1.4.5",
     "strophe": "1.2.4",
     "strophejs-plugins": "0.0.7",
     "yaeti": "1.0.1"