Bug 1073342 - Remove non-necessary thread in WifiCertService. r=vchang

dom/wifi/WifiCertService.cpp

@@ -227,13 +227,6 @@ WifiCertService::Start(nsIWifiEventListener* aListener)
 {
   MOZ_ASSERT(aListener);
 
-  nsresult rv = NS_NewThread(getter_AddRefs(mRequestThread));
-  if (NS_FAILED(rv)) {
-    NS_WARNING("Certn't create wifi control thread");
-    Shutdown();
-    return NS_ERROR_FAILURE;
-  }
-
   mListener = aListener;
 
   return NS_OK;
@@ -243,10 +236,6 @@ NS_IMETHODIMP
 WifiCertService::Shutdown()
 {
   MOZ_ASSERT(NS_IsMainThread());
-  if (mRequestThread) {
-    mRequestThread->Shutdown();
-    mRequestThread = nullptr;
-  }
 
   mListener = nullptr;
 

dom/wifi/WifiCertService.h

@@ -27,7 +27,6 @@ public:
 private:
   WifiCertService();
   ~WifiCertService();
-  nsCOMPtr<nsIThread> mRequestThread;
   nsCOMPtr<nsIWifiEventListener> mListener;
 };