go-native: remove dependency on go-bootstrap-native
The go1.4 toolchain is only required for bootstrapping
go-native, and should not be used for anything else,
so build it as part of the go-native build. This way,
we don't have to carry around its built artifacts in
the native sysroot.
The go-cross and target toolchains can then just depend
on go-native, using that for their 'bootstrap' toolchain.
Also removed some unnecessary package-related noexec
settings, since native recipes inherit nopackages.
Signed-off-by: Matt Madison <matt@madison.systems> Signed-off-by: Otavio Salvador <otavio@ossystems.com.br> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
