[Show title only if no featured image is present]

Here's a sample of what I'm referring to.

[Show title only if no featured image is present]

I have the following code:

 

<?php } else if ( is_single() ) {

                            if ( get_field("sf_page_image") ) {

                                $featured_image_ID = get_field("sf_page_image")["ID"];

                            } else {

                                $featured_image_ID = 272;

                            }

There is a placeholder image displaying now if there is no featured image.

I want to remove the placeholder image and show only the title if no featured image is present.