Removed stale simple cache memory suppressions

Removed stale simple cache memory suppressions.

BUG=448491
BUG=255775
R=gavinp@chromium.org

Committed: https://crrev.com/6358c0ea75d0eedee817ce693426a3668d3253ee
Cr-Commit-Position: refs/heads/master@{#332408}

[Randy Smith (Not in Mondays), 2015-06-01 20:28:52]

Gavin, could you take a look at this?  Both these suppressions look stale to
me--I believe the bug trail shows that you fixed them long ago.  I ran valgrind
in my checkout and then tossed this change at the memory bots, with no failures,
so I'm inclined to land it and see what happens.

[gavinp, 2015-06-02 16:03:08]

On 2015/06/01 20:28:52, rdsmith wrote:
> Gavin, could you take a look at this?  Both these suppressions look stale to
> me--I believe the bug trail shows that you fixed them long ago.  I ran
valgrind
> in my checkout and then tossed this change at the memory bots, with no
failures,
> so I'm inclined to land it and see what happens.

lgtm.

[Randy Smith (Not in Mondays), 2015-06-02 16:12:00]

The CQ bit was checked by rdsmith@chromium.org

[commit-bot: I haz the power, 2015-06-02 16:13:07]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1160233003/20001

[commit-bot: I haz the power, 2015-06-02 16:16:39]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-06-02 16:16:40]

Try jobs failed on following builders:
  ios_dbg_simulator_ninja on tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/ios_dbg_simulator...)
  ios_rel_device_ninja on tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/ios_rel_device_ni...)

[Randy Smith (Not in Mondays), 2015-06-02 16:30:49]

The CQ bit was checked by rdsmith@chromium.org

[Randy Smith (Not in Mondays), 2015-06-02 16:30:49]

The patchset sent to the CQ was uploaded after l-g-t-m from gavinp@chromium.org
Link to the patchset: https://codereview.chromium.org/1160233003/#ps40001
(title: "Sync'd to p332404.")

[commit-bot: I haz the power, 2015-06-02 16:32:32]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1160233003/40001

[commit-bot: I haz the power, 2015-06-02 16:44:42]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2015-06-02 16:45:41]

Patchset 3 (id:??) landed as
https://crrev.com/6358c0ea75d0eedee817ce693426a3668d3253ee
Cr-Commit-Position: refs/heads/master@{#332408}