syscall: don't define sys_SETREUID and friends

We don't use them, since we always call the C library functions which do
the right thing anyhow.  And they aren't defined on all GNU/Linux variants.

Fixes https://gcc.gnu.org/PR98510

Change-Id: I043b8afb4f9f07965e7d0962e863602c71199443
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/281473
Trust: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Than McIntosh <thanm@google.com>
2 files changed