Revert RibbonTab Header Customization Documentation#1901

SekarSivalingam wants to merge 1 commit intohotfix/hotfix-v30.2.4syncfusion-content/wpf-docs:hotfix/hotfix-v30.2.4from

WPF-964926-revertChangessyncfusion-content/wpf-docs:WPF-964926-revertChangesCopy head branch name to clipboard