version 4.2, how do I remove page title image from category page
the page title image is applied to all page titles throughout the website, you can't exclude it for specific pages in the administration.
But in case you are familiar with CSS, you can use this class name to add some code that resets the background property of the page title on category pages:html-category-page
Of course this will remove the image for all category pages, not just specific category.
Then you need to add more code to handle the color of your title, because it will disappear at first (white color on white background)