remove: remove utils/object-inverse-by

This commit removes `@stdlib/utils/object-inverse-by` in favor of
`@stdlib/object/inverse-by`.

BREAKING CHANGE: remove `utils/object-inverse-by`

To migrate, users should update their require/import paths to use
`@stdlib/object/inverse-by` which provides the same API and implementation.

Ref: #4797

Author: Neerajpathak07