Update what's new

dist/preview release/what's new.md

@@ -143,7 +143,6 @@
 - Renamed KHR_mesh_instancing extension to EXT_mesh_gpu_instancing ([#7945](https://github.com/BabylonJS/Babylon.js/issues/7945)) ([drigax](https://github.com/Drigax))
 - Added support for KHR_materials_ior for glTF loader. ([Sebavan](https://github.com/sebavan/))
 - Added support for KHR_materials_specular for glTF loader. ([Sebavan](https://github.com/sebavan/))
-- Added support for KHR_xmp for glTF loader. ([Sebavan](https://github.com/sebavan/))
 - Added support for KHR_materials_variants for glTF loader. ([MiiBond](https://github.com/MiiBond/))
 - Added support for KHR_materials_transmission for glTF loader. ([MiiBond](https://github.com/MiiBond/))
 - Improved progress handling in glTF loader. ([bghgary](https://github.com/bghgary))