openpower sdk: Drop openpower-dbus-yaml dep

Now that the org.open_power D-BUS yaml moved into
phosphor-dbus-interfaces, don't need this anymore.

Signed-off-by: Matt Spinler <spinler@us.ibm.com>
Change-Id: Iacfb00b59bf5a8ced912c177073d419f9030aa80
diff --git a/recipes-phosphor/packagegroups/nativesdk-packagegroup-sdk-host.bbappend b/recipes-phosphor/packagegroups/nativesdk-packagegroup-sdk-host.bbappend
index adccb9b..60b23b7 100644
--- a/recipes-phosphor/packagegroups/nativesdk-packagegroup-sdk-host.bbappend
+++ b/recipes-phosphor/packagegroups/nativesdk-packagegroup-sdk-host.bbappend
@@ -1,4 +1,3 @@
 RDEPENDS_${PN}_append_df-openpower = " \
-        nativesdk-openpower-dbus-interfaces-yaml \
         nativesdk-openpower-debug-collector-yaml \
         "