How to disable "Quantity" from Checkout/Cart page

[SueWoo101]

Thank you very much to @mobimarket who gave the following info :- insert these code into Settings > SEO > Header Code area. Tada! Qty box & Buy Now button gone!

My weebly site is susanwooler.com

Unbelievably I managed to adapt the code to get rid of just the Qty box and leave the buy it now, as I only have 1 of each painting

BUT on the checkout page/cart there is still an option to increase quantity

Please can anyone tell me how to remove the quantity box from the checkout page, I have tried adapting @mobimarket code but cannot figure this out Thank you in advance 

[shandilyn8]

@Adam could you provide me with some assistance? The codes above are not working for me. 

[shandilyn8]

@dancefitnesstif where you able to figure it out? I am still stuck on how to do this.

[Trendy1]

{{!
NOTE: `quantity_input_html` variable is required for the product page to work as intended.
}}
<style>
.wsite-com-product-quantity-input
{
display:none !important;
}
</style>
<div id="wsite-com-product-quantity">
{{#user_defined_quantity}}
<label class="wsite-com-product-label {{#disabled}}wsite-com-product-disabled{{/disabled}}" for="wsite-com-product-quantity-input">
<b class="wsite-com-product-title">{{#stl}}templates.platform.theme.base.commerce.product.quantity_1{{/stl}}</b>
</label>
{{/user_defined_quantity}}

{{{quantity_input_html}}}
</div>

I just removed this from quantity.tpl - I have no qt on any product required.. (Save the backup code in case needed later)