Remove last remnants of ENABLE_SVG

Source/core/svg/SVGZoomEvent.idl

Index: Source/core/svg/SVGZoomEvent.idl
diff --git a/Source/core/svg/SVGZoomEvent.idl b/Source/core/svg/SVGZoomEvent.idl
index 320e55250052bdb089cd26f3a872835781fbcf23..424fc6aea7251f9f318c714eb2e763916ea1a931 100644
--- a/Source/core/svg/SVGZoomEvent.idl
+++ b/Source/core/svg/SVGZoomEvent.idl
@@ -23,9 +23,7 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
  */
 
-[
-    Conditional=SVG
-] interface SVGZoomEvent : UIEvent { 
+interface SVGZoomEvent : UIEvent {
     readonly attribute SVGRect zoomRectScreen;
     readonly attribute float previousScale;
     [Immutable] readonly attribute SVGPoint previousTranslate;