GitLab

These have recently been retired from Valgrind, and are also being retired from Dr Memory:

bug_139467
bug_140196
bug_143545
bug_145244
bug_159005

BUG=139467,140196,143545,145244,159005
R=bruening@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/589903004

Cr-Commit-Position: refs/heads/master@{#296051}