GLSLNodeBuilder: Remove `Int16Array` check from `getTypeFromAttribute()`. (#28920)

src/renderers/webgl-fallback/nodes/GLSLNodeBuilder.js

@@ -476,7 +476,7 @@ ${ flowData.code }
 
 			const array = dataAttribute.array;
 
-			if ( ( array instanceof Uint32Array || array instanceof Int32Array || array instanceof Int16Array ) === false ) {
+			if ( ( array instanceof Uint32Array || array instanceof Int32Array ) === false ) {
 
 				nodeType = nodeType.slice( 1 );