[D-runtime] [D-Programming-Language/druntime] ddb84a: remove outdated comment

[GitHub via D-runtime]

  Branch: refs/heads/master
  Home:   https://github.com/D-Programming-Language/druntime
  Commit: ddb84a12333ba8f71790c18502dbfd9fd3d15a80
      https://github.com/D-Programming-Language/druntime/commit/ddb84a12333ba8f71790c18502dbfd9fd3d15a80
  Author: Martin Nowak <code at dawg.eu>
  Date:   2015-01-20 (Tue, 20 Jan 2015)

  Changed paths:
    M src/core/thread.d

  Log Message:
  -----------
  remove outdated comment

- see 7a731ffe0869dc981634029736bd83b3789a9f3c


  Commit: 3955e28810fcc7fc4231304e823a0586a5b13c4d
      https://github.com/D-Programming-Language/druntime/commit/3955e28810fcc7fc4231304e823a0586a5b13c4d
  Author: Martin Nowak <code at dawg.eu>
  Date:   2015-01-20 (Tue, 20 Jan 2015)

  Changed paths:
    M src/core/thread.d

  Log Message:
  -----------
  use atomicLoad/Store for critical regions

- sequential consistent memory order to synchronize
  across all threads


  Commit: e8f6550709c42ef5f62d56bd92a36466fc3c3e3a
      https://github.com/D-Programming-Language/druntime/commit/e8f6550709c42ef5f62d56bd92a36466fc3c3e3a
  Author: Martin Nowak <code at dawg.eu>
  Date:   2015-01-20 (Tue, 20 Jan 2015)

  Changed paths:
    M src/core/thread.d

  Log Message:
  -----------
  don't suspend threads before Thread.setThis is called

- guarantees that Thread.getThis is non-null in signal handler
- allows to use TLS for Thread.sm_thread (Issue 11981)


  Commit: 1c5ffc79eeb024116c5fd35180c47495ef3f98dd
      https://github.com/D-Programming-Language/druntime/commit/1c5ffc79eeb024116c5fd35180c47495ef3f98dd
  Author: Martin Nowak <code at dawg.eu>
  Date:   2015-01-20 (Tue, 20 Jan 2015)

  Changed paths:
    M src/core/thread.d

  Log Message:
  -----------
  use one m_suspendAgain flag for each thread


  Commit: a8c74e00fe21e7781bc6d6fa1773c12b7a1e63b7
      https://github.com/D-Programming-Language/druntime/commit/a8c74e00fe21e7781bc6d6fa1773c12b7a1e63b7
  Author: Andrei Alexandrescu <andrei at erdani.com>
  Date:   2015-01-25 (Sun, 25 Jan 2015)

  Changed paths:
    M src/core/thread.d

  Log Message:
  -----------
  Merge pull request #1116 from MartinNowak/dontSuspendStartingThreads

don't suspend starting threads


Compare: https://github.com/D-Programming-Language/druntime/compare/0d73cf2840c3...a8c74e00fe21