Remove the “Submit” button in a CF7 form

Hi.
I would like to exclude the “Submit” button in a CF7 form.
The source code of this section is :
<p><input type=”submit” value=”Envoyer” class=”wpcf7-form-control wpcf7-submit” /></p>
So I tried to use the Do Not Print Attribute with this shortcode :
[print-me printicon=”false” do_not_print=”.wpcf7-form-control wpcf7-submit” title=”Imprimez le formulaire” target=”#wpcf7-f1015-p1012-o1″/]
Anyway, the “Submit” button is still in the printing.
Did I miss something ?
Best regards.
Franck