Hi Krupesh Laiya,

you can use this :

<delete id="stock.report_picking" model="ir.ui.view" />

Try this one

@Vasanth, what you suggested is bearly correct and useful to delete a report menu item from the dropdown menu button "Print" (in sale order or stock pickings for example).

here is the correct syntaxe:

<delete id="stock.report_picking" model="ir.actions.report.xml" />

you've chosen the wrong model, that's all

syntax in odoo v 13 

ir.actions.report" />