[LTP] include: Remove 'make install' support

[linuxtestproject.agent@gmail.com]

Hi Petr,

On Wed, 22 Apr 2026, Petr Vorel wrote:
> include: Remove 'make install' support

> +# Copyright (c) Linux Test Project, 2026

Nit: existing line above uses "(C)" (uppercase); "(c)" here is inconsistent.

Reviewed-by: LTP AI Reviewer <ltp-ai@noreply.github.com>

---
Note:

Our agent completed the review of the patch. The full review can be
found at: <review_url>

The agent can sometimes produce false positives although often its
findings are genuine. If you find issues with the review, please
comment this email or ignore the suggestions.

Regards,
LTP AI Reviewer