So i just downloaded Google Sign-In For Unity , and my unity 2018.3.0f2 say there are 4 obsolete file in the asset and asking whether to delete them or keep them ( obsolete mean if i keep them they are just a waste of space ). So before i continue , is it still possible to use the asset ? or is there any way to make it possible to use obsolete asset ?
I have searched in the internet and unity seemed to have api updater but it is for script and it doesn't seem able to update asset because i didn't find any info about updating assets .