I want to remove the top "Save" button from the formview of my custom module.because i want create action with my custom button I know that we perform this by setting write/create to false in the XML,but button still appear

 my form view :

<field name="name">sales_inquiry</field>

<field name="model">sales_report_custom.sales_inquiry</field>

<field name="type">form</field> <field name="arch" type="xml">

<form create="false" edit="false" string="Sales Inquiry" version="7.0" >

<button string="View" name="action_open_form_report" type="object" class="btn-primary" /> </sheet>

</form>

</field>

my action : 

<record id="action_salesinquiry_list" model="ir.actions.act_window">

<field name="name">Sales Results Inquiry</field>

<field name="res_model">sales_report_custom.sales_inquiry</field>

<field name="view_id" ref="sales_results_form" />

<field name="target">current</field>

<field name="view_type">form</field>

<field name="view_mode">form</field>

Do you have an idea ? Thanks!