Programmatically remove block from layout

Question

I want to remove the product_options_wrapper block from the product view page according to the logedin user via frontend router controller.

I know that I can program

Answer 1

The OP code should work, if it used the correct block name, which is product.info.options.wrapper, as opposed to the block alias.

$this->loadLayout();
//e.g. 
if (Mage::getSingleton('customer/session')->getCustomerGroupId() == [id]){
     $this->getLayout()->unsetBlock('product.info.options.wrapper');
}
$this->renderLayout();