[D-runtime] [dlang/druntime] f54fa2: purge copied changelog

[GitHub via D-runtime]

  Branch: refs/heads/stable
  Home:   https://github.com/dlang/druntime
  Commit: f54fa2d97dbf7d5bb078d22737bdf78ee679d1c8
      https://github.com/dlang/druntime/commit/f54fa2d97dbf7d5bb078d22737bdf78ee679d1c8
  Author: Martin Nowak <code at dawg.eu>
  Date:   2016-10-01 (Sat, 01 Oct 2016)

  Changed paths:
    M changelog.dd

  Log Message:
  -----------
  purge copied changelog