meta-facebook: phosphor-ipmi-ipmb: remove stray MACHINE in FILESEXTRAPATHS

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I694d37cb2f534cefb1526e9f10ea5b019ce2a922
diff --git a/meta-facebook/recipes-phosphor/ipmi/phosphor-ipmi-ipmb_%.bbappend b/meta-facebook/recipes-phosphor/ipmi/phosphor-ipmi-ipmb_%.bbappend
index 824718f..c064394 100644
--- a/meta-facebook/recipes-phosphor/ipmi/phosphor-ipmi-ipmb_%.bbappend
+++ b/meta-facebook/recipes-phosphor/ipmi/phosphor-ipmi-ipmb_%.bbappend
@@ -1,4 +1,4 @@
-FILESEXTRAPATHS:prepend := "${THISDIR}/${PN}/${MACHINE}:"
+FILESEXTRAPATHS:prepend := "${THISDIR}/${PN}:"
 
 IPMB_CHANNELS ?= ""