There's not usually a lot to do after you've completed the steps above - indeed, if you're merely installed files direct from the archive, or whatever, there will be precisely nothing left, by way of debris.
Things you might care to clean up are:
zipfile, or the like;
insfiles, if you chose not to install them with the documentation; and
idx, etc., from building the documentation.
A simple way of achieving all this is to download to a working directory that was created for the purpose, and then to delete that directory and all its contents after you've finished installing.