meta-ibm: obmc-libobmc-intf: Remove MACHINE from path

Yocto already adds MACHINE as part of the file path.

Tested: Verified witherspoon(-128) and swift still had the correct
        gpio_defs.json file in their image.

(From meta-ibm rev: 1de2e7044a1c0fab64209be316f19cb8cd199e35)

Change-Id: Ie2180e4af987e4ee43164c11ac4dacb19eb0ebe2
Signed-off-by: Adriana Kobylak <anoo@us.ibm.com>
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/meta-ibm/meta-witherspoon/recipes-phosphor/skeleton/obmc-libobmc-intf_%.bbappend b/meta-ibm/meta-witherspoon/recipes-phosphor/skeleton/obmc-libobmc-intf_%.bbappend
index f245296..72d991c 100644
--- a/meta-ibm/meta-witherspoon/recipes-phosphor/skeleton/obmc-libobmc-intf_%.bbappend
+++ b/meta-ibm/meta-witherspoon/recipes-phosphor/skeleton/obmc-libobmc-intf_%.bbappend
@@ -1,2 +1 @@
-FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}/${MACHINE}/"
-FILESEXTRAPATHS_prepend_witherspoon-128 := "${THISDIR}/${PN}/witherspoon:"
+FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"