Remove ability to configure Manager attributes

DBus attributes like service, path, and interface have well-known names
and thus don't make sense sense to make configurable since they define
the schema and contracts expected from client applications.  As such,
remove the autoconf options associated with these.

Change-Id: Ibf6dfdea7bedfeda0bd9788c46e9d1cf043ccf3a
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/configure.ac b/configure.ac
index f5b5ba9..096b8bd 100644
--- a/configure.ac
+++ b/configure.ac
@@ -69,20 +69,15 @@
 AS_IF([test "x$SDBUSPLUSPLUS" == "x"],
     AC_MSG_ERROR([Cannot find sdbus++]))
 
-AC_ARG_VAR(BUSNAME, [The DBus busname to own.])
-AC_ARG_VAR(INVENTORY_ROOT, [The DBus inventory namespace root.])
-AC_ARG_VAR(IFACE, [The manager DBus interface.])
+AC_SUBST(BUSNAME, ["xyz.openbmc_project.Inventory.Manager"])
 AC_ARG_VAR(YAML_PATH, [The path to the yaml config files.])
 AC_ARG_VAR(IFACES_PATH, [The path to the interfaces PIM can create.])
-AS_IF([test "x$BUSNAME" == "x"], [BUSNAME="xyz.openbmc_project.Inventory.Manager"])
-AS_IF([test "x$INVENTORY_ROOT" == "x"], [INVENTORY_ROOT="/xyz/openbmc_project/inventory"])
-AS_IF([test "x$IFACE" == "x"], [IFACE="xyz.openbmc_project.Inventory.Manager"])
 AS_IF([test "x$YAML_PATH" == "x"], [YAML_PATH="$srcdir/example"])
 AM_CONDITIONAL(IFACES_PATH, [test x"$IFACES_PATH" != "x"])
 
 AC_DEFINE_UNQUOTED([BUSNAME], ["$BUSNAME"], [The DBus busname to own.])
-AC_DEFINE_UNQUOTED([INVENTORY_ROOT], ["$INVENTORY_ROOT"], [The DBus inventory namespace root.])
-AC_DEFINE_UNQUOTED([IFACE], ["$IFACE"], [The manager DBus interface.])
+AC_DEFINE_UNQUOTED([INVENTORY_ROOT], ["/xyz/openbmc_project/inventory"], [The DBus inventory namespace root.])
+AC_DEFINE_UNQUOTED([IFACE], ["xyz.openbmc_project.Inventory.Manager"], [The manager DBus interface.])
 
 AC_ARG_VAR(PIM_PERSIST_PATH, [Path of directory housing persisted inventory.])
 AS_IF([test "x$PIM_PERSIST_PATH" == "x"], \