Macos build with openmp

[synodriver]

Action's clang can't find omp.h

[synodriver]

How about remove macos's wheel build in order to unblock release? I can have it built on my mac m2.

[olegl]

It might be a quite late necroposting, but the omp.h with Clang is a known problem, see:

• https://stackoverflow.com/questions/33400462/omp-h-file-not-found-when-compiling-using-clang
• https://github.com/clang-omp/clang/issues/58

So, a small change to the build script should take care of it.

[synodriver]

The real problem is the clang on macos pretend to be gcc, but acctually it's not, so strange things are beginning to appear