diff --git a/Source/Examples/Tests/Extensions.Designer.cs b/Source/Examples/Tests/Extensions.Designer.cs
index 205fca94..5c527593 100644
--- a/Source/Examples/Tests/Extensions.Designer.cs
+++ b/Source/Examples/Tests/Extensions.Designer.cs
@@ -206,9 +206,6 @@
 
         private System.ComponentModel.BackgroundWorker backgroundWorker1;
         private System.Windows.Forms.DataGridView dataGridView1;
-        private System.Windows.Forms.DataGridViewCheckBoxColumn ColumnSupported;
-        private System.Windows.Forms.DataGridViewTextBoxColumn ColumnName;
-        private System.Windows.Forms.DataGridViewTextBoxColumn ColumnCategory;
         private System.Windows.Forms.Label LabelVendor;
         private System.Windows.Forms.Label LabelRenderer;
         private System.Windows.Forms.Label LabelVersion;