phosphor: distro: fix up uninative removal

At present we do not enable the uninative feature because a number of
our build systems are powerpc64le; there isn't any published
uninative tarball for powerpc64le and it isn't clear if uninative
works on non x86 platforms.

None of that changes with this patch, but the method in which it is
removed is...odd - first it is enabled in the usual way but then later
in the distro config it is turned back off.

Refactor and just don't turn it on in the first place.

Note that derivative distros can enable uninative if they don't have any
dependency on non x86 build hosts.

(From meta-phosphor rev: 70e685ef45a926064d27a2937d6274832c7608b4)

Change-Id: If2e343cb79529d1b888289feccd489e151e5a7a8
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/meta-phosphor/conf/distro/include/phosphor-base.inc b/meta-phosphor/conf/distro/include/phosphor-base.inc
index b9f5636..abb4178 100644
--- a/meta-phosphor/conf/distro/include/phosphor-base.inc
+++ b/meta-phosphor/conf/distro/include/phosphor-base.inc
@@ -76,8 +76,6 @@
 
 require conf/distro/include/poky-world-exclude.inc
 require conf/distro/include/no-static-libs.inc
-require conf/distro/include/yocto-uninative.inc
-INHERIT += "uninative"
 
 DISTRO = "openbmc-phosphor"
 DISTRO_NAME = "Phosphor OpenBMC (Phosphor OpenBMC Project Reference Distro)"
@@ -138,8 +136,6 @@
 
 include conf/distro/include/openbmc-phosphor/${MACHINE}.inc
 
-INHERIT_remove = " uninative"
-
 KERNEL_FEATURES_append = " phosphor-gpio-keys"
 KERNEL_FEATURES_remove_qemuall = " phosphor-gpio-keys"