GLTFModel needlessly caches typed arrays for glTF buffer views

[xeolabs]

Describe the bug
GLTFModel caches some typed array data for buffer views, which is never used.

Within GLTFModel's loadBufferView() function we need to remove the lines between the REMOVE comments below:

function loadBufferView(ctx, bufferViewInfo) {

            var buffer = ctx.json.buffers[bufferViewInfo.buffer];

            bufferViewInfo._typedArray = null;

            var byteLength = bufferViewInfo.byteLength || 0;
            var byteOffset = bufferViewInfo.byteOffset || 0;

            bufferViewInfo._buffer = buffer._buffer.slice(byteOffset, byteOffset + byteLength);

            // REMOVE
            if (bufferViewInfo.target === 34963) {
                 bufferViewInfo._typedArray = new Uint16Array(bufferViewInfo._buffer);          
            } else if (bufferViewInfo.target == 34962) {
                bufferViewInfo._typedArray = new Float32Array(bufferViewInfo._buffer);            /
            } else {           
             }
            // REMOVE
        }

Expected behavior
Less memory used while loading glTF files.