Magento disable logs and reports

local.xml

<frontend>
        <events>
            <!-- logs -->
            <controller_action_predispatch>
                <observers><log><type>disabled</type></log></observers>
            </controller_action_predispatch>
            <controller_action_postdispatch>
                <observers><log><type>disabled</type></log></observers>
            </controller_action_postdispatch>
            <customer_login>
                <observers><log><type>disabled</type></log></observers>
            </customer_login>
            <customer_logout>
                <observers><log><type>disabled</type></log></observers>
            </customer_logout>
            <sales_quote_save_after>
                <observers><log><type>disabled</type></log></observers>
            </sales_quote_save_after>
            <checkout_quote_destroy>
                <observers><log><type>disabled</type></log></observers>
            </checkout_quote_destroy>
            <!-- reports -->
            <catalog_product_compare_remove_product>
                <observers><reports><type>disabled</type></reports></observers>
            </catalog_product_compare_remove_product>
            <customer_logout>
                <observers><reports><type>disabled</type></reports></observers>
            </customer_logout>
            <catalog_controller_product_view>
                <observers><reports><type>disabled</type></reports></observers>
            </catalog_controller_product_view>
            <sendfriend_product>
                <observers><reports><type>disabled</type></reports></observers>
            </sendfriend_product>
            <catalog_product_compare_add_product>
                <observers><reports><type>disabled</type></reports></observers>
            </catalog_product_compare_add_product>
            <catalog_product_compare_item_collection_clear>
                <observers><reports><type>disabled</type></reports></observers>
            </catalog_product_compare_item_collection_clear>
            <sales_quote_item_save_before>
                <observers><reports><type>disabled</type></reports></observers>
            </sales_quote_item_save_before>
            <wishlist_add_product>
                <observers><reports><type>disabled</type></reports></observers>
            </wishlist_add_product>
            <wishlist_share>
                <observers><reports><type>disabled</type></reports></observers>
            </wishlist_share>
        </events>
    </frontend>