Removed unused "using"

Author: Gaardsholt

MenuGenerator.cs

@@ -1,5 +1,4 @@
-using System;
-using System.Collections;
+using System.Collections;
 using System.Collections.Generic;
 using System.Drawing;
 using System.Linq;

MyApplicationContext.cs

@@ -1,7 +1,5 @@
 using System;
-using System.Collections.Generic;
 using System.Drawing;
-using System.Text;
 using System.Threading.Tasks;
 using System.Windows.Forms;
 

Program.cs

@@ -1,6 +1,4 @@
 using System;
-using System.Drawing;
-using System.Threading.Tasks;
 using System.Windows.Forms;
 
 namespace busylight_client