--- a/testing/marionette/server.js
+++ b/testing/marionette/server.js
@@ -49,30 +49,16 @@ this.MarionetteServer = function(port, f
   this.port = port;
   this.forceLocal = forceLocal;
   this.conns = {};
   this.nextConnId = 0;
   this.alive = false;
 };
 
 /**
- * Initialises the Marionette server by loading in the special powers
- * which is required to provide some automation-only features.
- */
-MarionetteServer.prototype.init = function() {
-  // SpecialPowers requires insecure automation-only features that we put behind a pref
-  Services.prefs.setBoolPref(SPECIAL_POWERS_PREF, true);
-  let specialpowers = {};
-  loader.loadSubScript(
-    "chrome://specialpowers/content/SpecialPowersObserver.js", specialpowers);
-  specialpowers.specialPowersObserver = new specialpowers.SpecialPowersObserver();
-  specialpowers.specialPowersObserver.init();
-};
-
-/**
  * Function that takes an Emulator and produces a GeckoDriver.
  *
  * Determines application name and device type to initialise the driver
  * with.  Also bypasses offline status if the device is a qemu or panda
  * type device.
  *
  * @return {GeckoDriver}
  *     A driver instance.
@@ -110,17 +96,16 @@ MarionetteServer.prototype.driverFactory
 
   return new GeckoDriver(appName, device, emulator);
 };
 
 MarionetteServer.prototype.start = function() {
   if (this.alive) {
     return;
   }
-  this.init();
   let flags = Ci.nsIServerSocket.KeepWhenOffline;
   if (this.forceLocal) {
     flags |= Ci.nsIServerSocket.LoopbackOnly;
   }
   this.listener = new ServerSocket(this.port, flags, 0);
   this.listener.asyncListen(this);
   this.alive = true;
 };