configure: Remove systemd dbus paths

Nothing but our code references these variable so lets just define them
where they are needed instead of having the configure script populate
them.

Change-Id: Ibd08d0698488febf5ea1cc8d6c14379ea6a50051
Signed-off-by: William A. Kennington III <wak@google.com>
diff --git a/network_manager.cpp b/network_manager.cpp
index c4ab0da..4483631 100644
--- a/network_manager.cpp
+++ b/network_manager.cpp
@@ -20,6 +20,10 @@
 #include <string>
 #include <xyz/openbmc_project/Common/error.hpp>
 
+constexpr char SYSTEMD_BUSNAME[] = "org.freedesktop.systemd1";
+constexpr char SYSTEMD_PATH[] = "/org/freedesktop/systemd1";
+constexpr char SYSTEMD_INTERFACE[] = "org.freedesktop.systemd1.Manager";
+
 namespace phosphor
 {
 namespace network