Is there a simple way to reduce the SDK to use only S3 ?

Good morning all,

Is there a simple way to reduce the SDK to use only S3 ? I tried to delete certain directory but there are so many it will take an incredible time, and I have many errors depending on the files I delete ?! Is it possible to know the architecture of the basic files necessary to use only S3 with the SDK PHP please?

I found old posts on this subject but the file structure has changed and they are no longer current.

Because the complete SDK is very heavy with a lot of files that I don't need.