bindings: Just removes "NonTemplate" suffix in DOMDataStore.h and V8DOMWrapper.h.

BUG=235436

Review URL: https://codereview.chromium.org/688713005

git-svn-id: svn://svn.chromium.org/blink/trunk@184964 bbb929c8-8fbe-4397-9dbb-9b2b20218538