[EFL] Change the behavior of ewk_view_scale_set.
https://bugs.webkit.org/show_bug.cgi?id=70078

Reviewed by Eric Seidel.

Remove center point basis zoom alignment from ewk_view_scale_set to call
Page::setPageScaleFactor without any adjustment.

* ewk/ewk_view.cpp:
(ewk_view_scale_set):
* ewk/ewk_view.h:


git-svn-id: svn://svn.chromium.org/blink/trunk@103288 bbb929c8-8fbe-4397-9dbb-9b2b20218538
static Eina_Bool _ewk_view_smart_pre_render_relative_radius(Ewk_View_Smart_Data* smartData, unsigned int number, float zoom)
{
    WRN("not supported by engine. smartData=%p, n=%u zoom=%f",
        smartData, number, zoom);
    return false;
}

static Eina_Bool _ewk_view_smart_pre_render_relative_radius(Ewk_View_Smart_Data* smartData, unsigned int number, float zoom)
{
    WRN("not supported by engine. smartData=%p, n=%u zoom=%f",
        smartData, number, zoom);
    return false;
}
