Remove high promotion mode.

Remove high promotion mode.

BUG=
R=mstarzinger@chromium.org

Committed: https://code.google.com/p/v8/source/detail?r=21493

[Michael Starzinger, 2014-05-26 12:47:33]

LGTM.

https://codereview.chromium.org/296413004/diff/1/src/heap.h
File src/heap.h (right):

https://codereview.chromium.org/296413004/diff/1/src/heap.h#newcode2028
src/heap.h:2028: bool IsHighSurvivalRate() {
As discussed offline: Can we leave a TODO here to revisit whether we still need
this heuristic to switch the marker into fast mode.

[Hannes Payer (out of office), 2014-05-26 12:57:39]

https://codereview.chromium.org/296413004/diff/1/src/heap.h
File src/heap.h (right):

https://codereview.chromium.org/296413004/diff/1/src/heap.h#newcode2028
src/heap.h:2028: bool IsHighSurvivalRate() {
On 2014/05/26 12:47:33, Michael Starzinger wrote:
> As discussed offline: Can we leave a TODO here to revisit whether we still
need
> this heuristic to switch the marker into fast mode.

Done.

[Hannes Payer (out of office), 2014-05-26 12:59:07]

Committed patchset #2 manually as r21493 (presubmit successful).