eiru_base_menu/views/hide_menu.xml

<?xml version="1.0" encoding="utf-8"?>
<openerp>
    <data>
    	<!-- 
        ====================================
            HIDE MENUS
        ====================================
        -->
        <menuitem
            name="Hide"
            id="menu_hide"
            sequence="10"/>
        <!-- Ventas -->
        <menuitem
            name="Sales"
            id="base.menu_base_partner"
            parent="eiru_base_menu.menu_hide"
            sequence="0"/>
        <!-- Compras -->
        <menuitem
            name="Purchases"
            id="base.menu_purchase_root"
            parent="eiru_base_menu.menu_hide"
            sequence="1"/>
        <!-- Stock -->
        <menuitem
            name="Warehouse"
            id="stock.menu_stock_root"
            parent="eiru_base_menu.menu_hide"
            sequence="2"/>
    </data>
</openerp>