Replace the only remaining use of WindowsUtils.CreateSingleTickTimer

Core/Notification/Screenshot/TweetScreenshotManager.cs

@@ -1,6 +1,5 @@
 using System;
 using System.Windows.Forms;
-using TweetDck.Core.Utils;
 
 namespace TweetDck.Core.Notification.Screenshot{
     sealed class TweetScreenshotManager : IDisposable{
@@ -12,8 +11,16 @@ public TweetScreenshotManager(Form owner){
                 CanMoveWindow = () => false
             };
 
-            this.timeout = WindowsUtils.CreateSingleTickTimer(10000);
-            this.timeout.Tick += (sender, args) => screenshot.Reset();
+            this.timeout = new Timer{
+                Interval = 10000
+            };
+
+            this.timeout.Tick += timeout_Tick;
+        }
+
+        private void timeout_Tick(object sender, EventArgs e){
+            timeout.Stop();
+            screenshot.Reset();
         }
 
         public void Trigger(string html, int width, int height){

Core/Utils/WindowsUtils.cs

@@ -5,7 +5,6 @@
 using System.Text.RegularExpressions;
 using System.Threading;
 using System.Windows.Forms;
-using Timer = System.Windows.Forms.Timer;
 
 namespace TweetDck.Core.Utils{
     static class WindowsUtils{
@@ -39,15 +38,6 @@ public static Process StartProcess(string file, string arguments, bool runElevat
             return Process.Start(processInfo);
         }
 
-        public static Timer CreateSingleTickTimer(int timeout){
-            Timer timer = new Timer{
-                Interval = timeout
-            };
-
-            timer.Tick += (sender, args) => timer.Stop();
-            return timer;
-        }
-
         public static bool TrySleepUntil(Func<bool> test, int timeoutMillis, int timeStepMillis){
             for(int waited = 0; waited < timeoutMillis; waited += timeStepMillis){
                 if (test()){