[Theme Horse Support Team]

Hi rajatpoonia37,

Please remove the above css that we have provided. The above CSS will remove the author name below your post title.
The comment author is displayed from the core of WordPress files. So its not possible. You have to remove it from the core file of WordPress.

If you add below css then your client comments will also lost. you may try it.

.comment-author cite.fn {
    display: none;
}

Thank you!