Remove unused function

Author: stefnotch

Flow.Launcher/Helper/FileExplorerHelper.cs

@@ -63,8 +63,5 @@ private static SHDocVw.InternetExplorer GetActiveExplorer()
 
         [DllImport("user32.dll")]
         private static extern IntPtr GetForegroundWindow();
-
-        [DllImport("user32.dll")]
-        static extern int GetWindowText(IntPtr hWnd, StringBuilder text, int count);
     }
 }