remove author name and date from posts

Hey!
How can I remove the author name in Posts Manually. In fact I need to locate the code responsible for displaying the author’s name in Mesmerize theme files and delete it, but I couldn’t find the code.
I tried to use some plugins to do this but they don’t work with new version of wordpress. so my question is: where and what is the function that Mesmerize theme uses to display author name and post date / time.

• This topic was modified 7 years, 6 months ago by mostafaabarati.

The page I need help with: [log in to see the link]