stress-ng: Do not enforce gold linker

stress-ng: Do not enforce gold linker

This can then be controlled by yocto environment through LDFLAGS if
needed since we support multiple linkers and distro policy may want a
different linker, moreover gold fails on ppc32 to link since its missing

Fixes errors like below on ppc/gold + clang

/usr/lib/clang/15.0.6/lib/linux/libclang_rt.builtins-powerpc.a(mulsc3.c.o): unsupported -mbss-plt code

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>