Make check-wheel-contents ignore top-level structure

MacOS and Linux top-level structures are different, and at the moment I
don't see a way of setting alternate values for different platforms.

Author: mhucka

pyproject.toml

@@ -29,6 +29,5 @@ manylinux-i686-image = "manylinux2014"
 skip = "*musllinux*"
 
 [tool.check-wheel-contents]
-toplevel = "qsimcirq,qsimcirq.libs"
 # See https://github.com/jwodder/check-wheel-contents for a list of codes.
-ignore = "W010"
+ignore = "W009,W010"