Temporarily disable test-heap-profiler/TrackHeapAllocations

The test started failing on  V8 Linux - nosnap - debug after r17301 which added stack traversal to the allocation tracker. I'm disabling it for now until the problem is fixed.

BUG=v8:2949
TBR=hpayer@chromium.org

Review URL: https://codereview.chromium.org/30633005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@17303 ce2b1a6d-e550-0410-aec6-3dcde31c8c00