Replace ol/Sphere with ol/sphere

src/ol/Geolocation.js

@@ -4,14 +4,12 @@
 import {inherits} from './index.js';
 import _ol_GeolocationProperty_ from './GeolocationProperty.js';
 import _ol_Object_ from './Object.js';
-import _ol_Sphere_ from './Sphere.js';
 import _ol_events_ from './events.js';
 import EventType from './events/EventType.js';
 import Polygon from './geom/Polygon.js';
 import _ol_has_ from './has.js';
 import {toRadians} from './math.js';
 import {get as getProjection, getTransformFromProjections, identityTransform} from './proj.js';
-import _ol_proj_EPSG4326_ from './proj/EPSG4326.js';
 
 
 /**
@@ -74,12 +72,6 @@ var Geolocation = function(opt_options) {
    */
   this.transform_ = identityTransform;
 
-  /**
-   * @private
-   * @type {ol.Sphere}
-   */
-  this.sphere_ = new _ol_Sphere_(_ol_proj_EPSG4326_.RADIUS);
-
   /**
    * @private
    * @type {number|undefined}
@@ -175,8 +167,7 @@ Geolocation.prototype.positionChange_ = function(position) {
   this.set(_ol_GeolocationProperty_.POSITION, projectedPosition);
   this.set(_ol_GeolocationProperty_.SPEED,
       coords.speed === null ? undefined : coords.speed);
-  var geometry = Polygon.circular(
-      this.sphere_, this.position_, coords.accuracy);
+  var geometry = Polygon.circular(this.position_, coords.accuracy);
   geometry.applyTransform(this.transform_);
   this.set(_ol_GeolocationProperty_.ACCURACY_GEOMETRY, geometry);
   this.changed();