Revert "Add handle property"

This reverts commit 94e1160.

Author: Jim.Jiang

src/DotnetDumpMonitor/Models/ProcessDumpInfo.cs

@@ -1,25 +1,19 @@
-using DotnetDumpMonitor.Commons;
-using System;
+using System;
 using System.Collections.Generic;
-using System.Diagnostics;
 using System.Linq;
-using System.Runtime.InteropServices;
 using System.Text;
 using System.Threading.Tasks;
 
 namespace DotnetDumpMonitor.Models
 {
     public class ProcessDumpInfo
     {
-
         public int ProcessID { get; }
         public string Name { get; }
-        public IntPtr Handle { get; }
 
         public ProcessDumpInfo(int processID, string name)
         {
             ProcessID = processID;
-            Handle = WindowsHelper.GetRootWindowOfProcess(processID);
             Name = name;
         }