Remove geolocationDestroyed() client notification.

public/web/WebGeolocationClient.h

Index: public/web/WebGeolocationClient.h
diff --git a/public/web/WebGeolocationClient.h b/public/web/WebGeolocationClient.h
index 7b3221b050c5e2f9f70f6f1ce1f84019a27a3e36..f9625527c26508ed732c7b3cde7d72a0c3701276 100644
--- a/public/web/WebGeolocationClient.h
+++ b/public/web/WebGeolocationClient.h
@@ -39,13 +39,11 @@ public:
     virtual void startUpdating() = 0;
     virtual void stopUpdating() = 0;
     virtual void setEnableHighAccuracy(bool) = 0;
-    virtual void geolocationDestroyed() { }
     virtual bool lastPosition(WebGeolocationPosition&) = 0;
 
     virtual void requestPermission(const WebGeolocationPermissionRequest&) = 0;
     virtual void cancelPermissionRequest(const WebGeolocationPermissionRequest&) = 0;
 
-    // The controller is valid until geolocationDestroyed() is invoked.
     // Ownership of the WebGeolocationController is transferred to the client.
     virtual void setController(WebGeolocationController*) = 0;
 };