Bug#618988: gcc-4.6 fixes for kfreebsd-*

[Petr Salinger <Petr.Salinger@seznam.cz>]

> > 2) liblto_plugin.* is missing in generated gcc-4.6 binary package
>
> The liblto_plugin.* have to be installed on kfreebsd-* somehow.
> or -fno-use-linker-plugin have to be default.

I saw changes in SVN, the r5135 should fix it,
please from r5130 revert this:

gold_cpus = i386 i486 i586 i686 x86_64
ifneq (,$(filter $(DEB_TARGET_ARCH_CPU),$(gold_cpus)))
with_gold := yes
endif

Sorry for the noise.

Petr