Make run-bindings-test reset results for EventInterfaces.in quiet too

Missed one logging message ('Reset results: EventInterfaces.in')
in previous CL; this fixes it and makes it quiet by default.

Followup to:
Make run-bindings-tests quiet by default
https://codereview.chromium.org/55673002/

Review URL: https://codereview.chromium.org/58933002

git-svn-id: svn://svn.chromium.org/blink/trunk@161316 bbb929c8-8fbe-4397-9dbb-9b2b20218538