Remove throwTypeError() from V8Binding.h

throwTypeError() in V8Binding.h is not helpful since it's just proxying
to V8ThrowException::throwTypeError(). We should just use V8ThrowException::throwTypeError().

Review URL: https://codereview.chromium.org/445903002

git-svn-id: svn://svn.chromium.org/blink/trunk@179629 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Auto-rebaseline for r179547

http://src.chromium.org/viewvc/blink?view=revision&revision=179547

BUG=400445
TBR=senorblanco@chromium.org

Review URL: https://codereview.chromium.org/449563002

git-svn-id: svn://svn.chromium.org/blink/trunk@179630 bbb929c8-8fbe-4397-9dbb-9b2b20218538