[OpenSIPS-Devel] [OpenSIPS/opensips] b55c85: Migrated to the global DUMMY SIP msg support

[Bogdan Andrei IANCU]

  Branch: refs/heads/3.1
  Home:   https://github.com/OpenSIPS/opensips
  Commit: b55c85d0339095ee9a2fa1267546c828d7e6fdd7
      https://github.com/OpenSIPS/opensips/commit/b55c85d0339095ee9a2fa1267546c828d7e6fdd7
  Author: Bogdan-Andrei Iancu <bogdan at opensips.org>
  Date:   2021-03-02 (Tue, 02 Mar 2021)

  Changed paths:
    M async.c
    M net/trans_trace.c
    M route.c
    M timer.c

  Log Message:
  -----------
  Migrated to the global DUMMY SIP msg support

This is a completion to the 84d1bad2c41b4b58170c0943edd837b08d15012f

(cherry picked from commit 2d5420ab2cf336f0d7da641f31444a1438086f42)