Incorrect docs in get_the_terms().

[mfields]

I've recently used get the terms outside the loop successfully, but the docs state that it must be used inside the loop both in the Codex an inline. I believe this to be an error. Please correct me if I am wrong.

Remove potentially incorrect documentation.

It's accurate only when the $id is not passed (or rather, is 0/false/null, since the next argument is required) and you're outside the loop. This change is fine to me.

Should docs be updated to reflect this? I'll upload another path if so.

These functions are odd in that $id has a default but is followed by a non-optional taxonomy. The default should likely be removed. I don't know that we should bother documenting passing 0. Might as well just past the ID since you have to pass something.

#15160 added a default. It seems we should do the opposite and remove these defaults since taxonomy is not optional.

In [18081]:

Remove misleading phpdoc. Props mfields. fixes #17558