meta-openpower: remove virtual inventory

Nothing DEPENDS on virtual/obmc-inventory-data, and nothing RDEPENDS on
VIRTUAL-RUNTIME_skeleton_workbook, so there isn't any need to set
default ones for OpenPOWER systems.

(From meta-openpower rev: 93729fa5b38ebe4dc3919519f599c26d3a25ad55)

Change-Id: I658361c2b42a2277f64c6321ff4e9645ca56389e
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/meta-openpower/conf/machine/include/openpower.inc b/meta-openpower/conf/machine/include/openpower.inc
index feb37ac..34b695b 100644
--- a/meta-openpower/conf/machine/include/openpower.inc
+++ b/meta-openpower/conf/machine/include/openpower.inc
@@ -9,8 +9,6 @@
         obmc-bmc-state-mgmt \
         "
 
-VIRTUAL-RUNTIME_skeleton_workbook = "${MACHINE}-config"
-
 # Add OpenPOWER OEM commands handler library
 VIRTUAL-RUNTIME_phosphor-ipmi-providers_append_df-openpower = " \
     openpower-ipmi-oem \
@@ -22,7 +20,6 @@
 PREFERRED_PROVIDER_virtual/obmc-flash-mgmt = "packagegroup-op-apps"
 PREFERRED_PROVIDER_virtual/obmc-system-mgmt = "packagegroup-op-apps"
 PREFERRED_PROVIDER_virtual/obmc-host-ctl ?= "obmc-op-control-host"
-PREFERRED_PROVIDER_virtual/obmc-inventory-data ?= "${VIRTUAL-RUNTIME_skeleton_workbook}"
 PREFERRED_PROVIDER_virtual/phosphor-ipmi-fru-hostfw-config ?= "hostboot-inventory-config-native"
 PREFERRED_PROVIDER_virtual/openpower-fru-vpd-layout ?= "openpower-fru-vpd-layout-native"
 PREFERRED_PROVIDER_virtual/openpower-fru-inventory ?= "openpower-fru-inventory-example-native"