app/overrides/spree/products/show/remove_add_to_cart_button_for_non_individual_sale_products.rb
Deface::Override.new(
virtual_path: 'spree/products/show',
name: 'remove_add_to_cart_button_for_non_individual_sale_products',
surround: '[data-hook="cart_form"]',
text: <<-HTML
<% if @product.individual_sale? %>
<%= render_original %>
<% end %>
HTML
)