Removed redundant needsUpdate=true from DataTexture doc

Following #17491

docs/api/en/textures/DataTexture.html

@@ -57,7 +57,6 @@
 		// used the buffer to create a [name]
 
 		var texture = new THREE.DataTexture( data, width, height, THREE.RGBFormat );
-		texture.needsUpdate = true
 		</code>
 
 		<h2>Properties</h2>