[Autofill] Remove AutofillPopupViewViews and associated feature.

Bug: 906135,831603
Change-Id: I3c982f8b3ffb4928c7c878e74e10113999106499
Reviewed-on: https://chromium-review.googlesource.com/c/1387124
Reviewed-by: Robert Kaplow <rkaplow@chromium.org>
Reviewed-by: Vasilii Sukhanov <vasilii@chromium.org>
Reviewed-by: Fabio Tirelo <ftirelo@chromium.org>
Reviewed-by: Tommy Martino <tmartino@chromium.org>
Commit-Queue: Mathieu Perreault <mathp@chromium.org>
Cr-Commit-Position: refs/heads/master@{#621360}
void AutofillPopupItemView::OnMouseReleased(const ui::MouseEvent& event) {
  AutofillPopupController* controller = popup_view_->controller();
  if (controller && event.IsOnlyLeftMouseButton() &&
      HitTestPoint(event.location())) {
    controller->AcceptSuggestion(line_number_);
  }
}

void AutofillPopupItemView::OnMouseReleased(const ui::MouseEvent& event) {
  AutofillPopupController* controller = popup_view_->controller();
  if (controller && event.IsOnlyLeftMouseButton() &&
      HitTestPoint(event.location())) {
    controller->AcceptSuggestion(line_number_);
  }
}
