How to Remove Tags From Posts?

You could hide it with CSS like so:

.entry-meta .tag-links {
display: none;
}

if you want to always get rid of the pipe ( | ) before the tags, you can use this:

.entry-meta .tag-links,
 .entry-meta .sep {
display: none;
}

Is there a specific place I have to put those codes in? I’m just adding it to the bottom of my CSS editor and it’s not working ??

Can you share a link to your site, so I can look at your source code?

I’m not sure what you mean by your css editor.
you should be using a child theme – Codex: Child theme

or use a CSS plugin such as this one https://www.ads-software.com/plugins/simple-custom-css/ or jetpack.

I just added the code to my Jetpack and it worked – thank you!

Awesome. Glad that worked.