GitUI.FormBrowse.RemoveSubmoduleButtons C# (CSharp) Method

        private void RemoveSubmoduleButtons()
        {
            foreach (var item in openSubmoduleToolStripMenuItem.DropDownItems)
            {
                var toolStripButton = item as ToolStripButton;
                if(toolStripButton != null)
                    toolStripButton.Click -= SubmoduleToolStripButtonClick;
            }
            openSubmoduleToolStripMenuItem.DropDownItems.Clear();
        }