[OpenSIPS-Devel] [OpenSIPS/opensips] 558266: aaa_diameter: Fix `app_opensips` compilation

[Liviu Chircu]

  Branch: refs/heads/3.2
  Home:   https://github.com/OpenSIPS/opensips
  Commit: 5582666ba49365dd18387e1b7cc59d853c3841ad
      https://github.com/OpenSIPS/opensips/commit/5582666ba49365dd18387e1b7cc59d853c3841ad
  Author: Liviu Chircu <liviu at opensips.org>
  Date:   2022-05-12 (Thu, 12 May 2022)

  Changed paths:
    M modules/aaa_diameter/app_opensips/avps.c

  Log Message:
  -----------
  aaa_diameter: Fix `app_opensips` compilation

The "peer.h" import is not available when compiling "app_opensips"
within freeDiameter.  Moreover, it's not used anyway, so just remove it.

(cherry picked from commit 7c3fef41a22b39d296c97a21ea5aed1d4d5770e7)