Remove NodeIsSupported from UseCounter.h
Remove NodeIsSupported from UseCounter.h

I forgot this in r165237: https://codereview.chromium.org/133703014

BUG=334970

Review URL: https://codereview.chromium.org/173813003

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@167558 bbb929c8-8fbe-4397-9dbb-9b2b20218538

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