[dovecot/core] 6215a7: lib-auth: Code cleanup - remove unnecessary code

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/dovecot/core
  Commit: 6215a7ed04836eb66776e92b8686eff09b39a93f
      https://github.com/dovecot/core/commit/6215a7ed04836eb66776e92b8686eff09b39a93f
  Author: Timo Sirainen <timo.sirainen at dovecot.fi>
  Date:   2017-06-04 (Sun, 04 Jun 2017)

  Changed paths:
    M src/lib-auth/auth-client-request.c

  Log Message:
  -----------
  lib-auth: Code cleanup - remove unnecessary code

Besides being unnecessary, it was also obsolete since not all the strings
were p_strdup()ed.