Remove the golang POSIX semantics validation tests.

These were here as a commentary mostly, and now that the golang
upstream sources (targeted for 1.16 release) contain my patch
that enables POSIX semantics, [

   https://go-review.googlesource.com/c/go/+/210639

], and the syscall.TestSetuidEtc() test code has been enhanced to
run on all Go supported Linux architectures, there is no need to
keep a seed copy of it here.

Signed-off-by: Andrew G. Morgan <morgan@kernel.org>
6 files changed