Delete the blog post details and override “ishyoboy_get_post_details” function

i need to delete the blog post details, i looked for the div “.ish-blog-post-details” in almost all the php files but i couldn’t find it.
i want to delete only the author (by…) and the category (in category…), but keep the date. that’s why i can’t use the css, but i have to modify the php file.

please can you tell me where is the file?

i need to make this change both in the CATEGOR BLOG ARCHIVE PAGE and in the TAGLINE SINGLE BLOG PAGE. thanks!