Remove unused inherits

src/ol/style/Circle.js

@@ -1,7 +1,7 @@
 /**
  * @module ol/style/Circle
  */
-import {inherits} from '../util.js';
+
 import RegularShape from '../style/RegularShape.js';
 
 

src/ol/style/Icon.js

@@ -1,7 +1,7 @@
 /**
  * @module ol/style/Icon
  */
-import {getUid, inherits} from '../util.js';
+import {getUid} from '../util.js';
 import ImageState from '../ImageState.js';
 import {assert} from '../asserts.js';
 import {asArray} from '../color.js';

src/ol/style/IconImage.js

@@ -1,7 +1,7 @@
 /**
  * @module ol/style/IconImage
  */
-import {inherits} from '../util.js';
+
 import {createCanvasContext2D} from '../dom.js';
 import {listenOnce, unlistenByKey} from '../events.js';
 import EventTarget from '../events/EventTarget.js';

src/ol/style/RegularShape.js

@@ -1,7 +1,7 @@
 /**
  * @module ol/style/RegularShape
  */
-import {inherits} from '../util.js';
+
 import {asColorLike} from '../colorlike.js';
 import {createCanvasContext2D} from '../dom.js';
 import {CANVAS_LINE_DASH} from '../has.js';