Avoid duplicate imports

src/ol/renderer/canvas/ImageLayer.js

@@ -6,11 +6,18 @@ import ViewHint from '../../ViewHint.js';
 import {ENABLE_RASTER_REPROJECTION} from '../../reproj/common.js';
 import {IMAGE_SMOOTHING_DISABLED, IMAGE_SMOOTHING_ENABLED} from './common.js';
 import {assign} from '../../obj.js';
-import {compose as composeTransform, makeInverse} from '../../transform.js';
-import {containsExtent, intersects as intersectsExtent} from '../../extent.js';
+import {
+  compose as composeTransform,
+  makeInverse,
+  toString as toTransformString,
+} from '../../transform.js';
+import {
+  containsExtent,
+  getIntersection,
+  intersects as intersectsExtent,
+  isEmpty,
+} from '../../extent.js';
 import {fromUserExtent} from '../../proj.js';
-import {getIntersection, isEmpty} from '../../extent.js';
-import {toString as toTransformString} from '../../transform.js';
 
 /**
  * @classdesc

src/ol/renderer/canvas/TileLayer.js

@@ -9,6 +9,7 @@ import {
   apply as applyTransform,
   compose as composeTransform,
   makeInverse,
+  toString as toTransformString,
 } from '../../transform.js';
 import {assign} from '../../obj.js';
 import {
@@ -21,7 +22,6 @@ import {cssOpacity} from '../../css.js';
 import {fromUserExtent} from '../../proj.js';
 import {getUid} from '../../util.js';
 import {numberSafeCompareFunction} from '../../array.js';
-import {toString as toTransformString} from '../../transform.js';
 
 /**
  * @classdesc

src/ol/renderer/webgl/TileLayer.js

@@ -23,9 +23,8 @@ import {
   getKey as getTileCoordKey,
 } from '../../tilecoord.js';
 import {fromUserExtent} from '../../proj.js';
-import {getIntersection} from '../../extent.js';
+import {getIntersection, isEmpty} from '../../extent.js';
 import {getUid} from '../../util.js';
-import {isEmpty} from '../../extent.js';
 import {numberSafeCompareFunction} from '../../array.js';
 import {toSize} from '../../size.js';