Revert 161546 "Report size of the external memory to V8 in Stati..."

We increased the maximal allocation size instead.

> Report size of the external memory to V8 in StaticNodeList
> 
> When we create a lot of moderately large NodeLists, the V8 GC heuristic
> isn't aggressively enough collecting wrappers which can lead to an OOM
> crash. Reporting the size of the nodelists to V8 fixes this issue.
> 
> The other kinds of nodelists don't have variable sized members, so they
> don't have this problem
> 
> BUG=315082
> TEST=opening PerformanceTests/Parser/query-selector-all-class.html in a release build content shell on a fast computer doesn't crash.
> R=dslomov@chromium.org
> 
> Review URL: https://codereview.chromium.org/64203002

TBR=jochen@chromium.org

Review URL: https://codereview.chromium.org/79253002

git-svn-id: svn://svn.chromium.org/blink/trunk@162396 bbb929c8-8fbe-4397-9dbb-9b2b20218538