Added: dispatchEvent to deleteAction(). Only existed in massDeleteAction().

[Bogardo]

Mage::dispatchEvent('catalog_controller_product_delete', array('product' => $product));
To the deleteAction().
Currently only exists in massDeleteAction()

[magento-team]

Thank you for the request.
'catalog_controller_product_delete' event was used for refreshing Tags related to products. This logic was replaced by adding Tag indexer and as a result, 'catalog_controller_product_delete' event is not needed anymore and was removed (see nearest GitHub update).
Actually Bogardo, you are right, this event should be used both for delete() and massDelete() actions.
If you need some event on delete product action, you can use 'catalog_product_delete_before' event, which is dispatched in Mage_Core_Model_Abstract::_beforeDelete(). In this case you can be sure, that you catch product delete event not depending on a way the product is deleted.