This code will remove the Edit with Visual Composer link from the WordPress admin bar when logged in to make more room for other links. It's a very long text so it can take up a lot of room in the admin bar and you may want to remove it if there are a lot of of other links being added by other plugins or your theme.
add_action( 'vc_after_init', function() {
remove_action( 'admin_bar_menu', array( vc_frontend_editor(), 'adminBarEditLink' ), 1000 );
} );