Deleting the words "Recent posts" from home page

Hi,
I want to delete the words ‘recent posts” from my home page. Not the actual posts just the title that shows under the main picture.

This is my first time creating a site, so maybe I am doing something wrong, but I have tried different things and none of them works.

I am using the Klean theme and I’m working with a child I’ve created.

I found this piece of code in the Klean theme under home.php:

<div id=”primary-home” class=”content-home col-lg-6 col-md-6 col-sm-12 col-xs-12″>
<h2 id=”page-title”>
<span><?php _e(“Recent Posts”, ‘klean’) ?></span>

However, I’ve deleted the words “recent posts” or I have translated them (since my site is in French) and tried using it in my child but nothing changes. As I said: this is my first time working with this so I’m sure I’m doing something wrong, I just can’t identify what. Maybe I’m just editing in the wrong area?

My website is https://www.laquesne.terroirs-normands.com

Thanks in advance for the help and please be explicit in the answer so I can understand!