Remove conditional import for TextureUtils (#1335)

Co-authored-by: BOUILLAGUET Quentin <quentin.bouillaguet@ign.fr>

Author: Desplandis

src/three/plugins/images/sources/TiledImageSource.js

@@ -1,7 +1,6 @@
 import { DataCache } from '../utils/DataCache.js';
 import { TilingScheme } from '../utils/TilingScheme.js';
-import { SRGBColorSpace, Texture } from 'three';
-import * as THREE from 'three';
+import { SRGBColorSpace, Texture, TextureUtils } from 'three';
 
 // TODO: support queries for detail at level - ie projected pixel size for geometric error mapping
 // Goes here or in "TilingScheme"?
@@ -39,14 +38,6 @@ export class TiledImageSource extends DataCache {
 
 	getMemoryUsage( tex ) {
 
-		// deprecated: remove in next major release
-		const { TextureUtils } = THREE;
-		if ( ! TextureUtils ) {
-
-			return 0;
-
-		}
-
 		const { format, type, image, generateMipmaps } = tex;
 		const { width, height } = image;
 		const bytes = TextureUtils.getByteLength( width, height, format, type );

src/three/renderer/utils/MemoryUtils.js

@@ -1,17 +1,8 @@
 import { estimateBytesUsed as _estimateBytesUsed } from 'three/examples/jsm/utils/BufferGeometryUtils.js';
-import * as THREE from 'three';
+import { TextureUtils } from 'three';
 
 export function safeTextureGetByteLength( tex ) {
 
-	// NOTE: This is for backwards compatibility and should be removed later
-	// deprecated: remove in next major release
-	const { TextureUtils } = THREE;
-	if ( ! TextureUtils || ! tex ) {
-
-		return 0;
-
-	}
-
 	const { format, type, image } = tex;
 	const { width, height } = image;