Alternatively you could go into main-page.liquid in your sections folder and make a case statement with your page handle and assign a variable to be true if you want to hide the page, then use an unless statement around the title:
{% assign hide_page = false %}
{% case page.handle %}
{% when 'hdl-star-rewards-1' %}
{% assign hide_page = true %}
{% endcase %}
#
{% unless hide_page %}{{ page.title | escape }}{% endunless %}
{{ page.content }}
{% schema %}
{
"name": "t:sections.main-page.name",
"tag": "section",
"class": "spaced-section"
}
{% endschema %}
Then if you should need to hide it on any other pages in the future you can add to the case statement. Say you wanted to hide the title on your about-us page:
{% assign hide_page = false %}
{% case page.handle %}
{% when 'hdl-star-rewards-1' %}
{% assign hide_page = true %}
{% when 'about-us' %}
{% assign hide_page = true %}
{% endcase %}
#
{% unless hide_page %}{{ page.title | escape }}{% endunless %}
{{ page.content }}
{% schema %}
{
"name": "t:sections.main-page.name",
"tag": "section",
"class": "spaced-section"
}
{% endschema %}