WebGPURenderer: Uniform - Clean up. (#28500)

examples/jsm/renderers/common/Uniform.js

@@ -2,7 +2,7 @@ import { Color, Matrix3, Matrix4, Vector2, Vector3, Vector4 } from 'three';
 
 class Uniform {
 
-	constructor( name, value = null ) {
+	constructor( name, value ) {
 
 		this.name = name;
 		this.value = value;