Delete shortcut keys for routing rules

v2rayN/v2rayN/ViewModels/RoutingRuleSettingViewModel.cs

@@ -167,7 +167,7 @@ namespace v2rayN.ViewModels
             }
         }
 
-        private void RuleRemove()
+        public void RuleRemove()
         {
             if (SelectedSource is null || SelectedSource.outboundTag.IsNullOrEmpty())
             {

v2rayN/v2rayN/Views/RoutingRuleSettingWindow.xaml.cs

@@ -90,6 +90,10 @@ namespace v2rayN.Views
                 {
                     ViewModel?.MoveRule(EMove.Bottom);
                 }
+                else if (e.Key == Key.Delete)
+                {
+                    ViewModel?.RuleRemove();
+                }
             }
         }
 

v2rayN/v2rayN/Views/RoutingSettingWindow.xaml.cs

@@ -88,6 +88,10 @@ namespace v2rayN.Views
             {
                 ViewModel?.RoutingAdvancedSetDefault();
             }
+            else if (e.Key == Key.Delete)
+            {
+                ViewModel?.RoutingAdvancedRemove();
+            }
         }
 
         private void menuRoutingAdvancedSelectAll_Click(object sender, System.Windows.RoutedEventArgs e)