Remove unused dbus_get_pid_from_bus_name()

If something like this is needed later on, it must be re-implemented
without using dbus_send_with_block().

mce-dbus.c

@@ -720,32 +720,6 @@ DBusMessage *dbus_send_with_block(const gchar *const service,
 	return reply;
 }
 
-/**
- * Translate a D-Bus bus name into a pid
- *
- * @param bus_name A string with the bus name
- * @return The pid of the process, or -1 if no process could be identified
- */
-pid_t dbus_get_pid_from_bus_name(const gchar *const bus_name)
-{
-	dbus_uint32_t pid = -1;
-	DBusMessage *reply;
-
-	if ((reply = dbus_send_with_block("org.freedesktop.DBus",
-					  "/org/freedesktop/DBus/Bus",
-					  "org.freedesktop.DBus",
-					  "GetConnectionUnixProcessID", -1,
-					  DBUS_TYPE_STRING, &bus_name,
-					  DBUS_TYPE_INVALID)) != NULL) {
-		dbus_message_get_args(reply, NULL,
-				      DBUS_TYPE_UINT32, &pid,
-				      DBUS_TYPE_INVALID);
-		dbus_message_unref(reply);
-	}
-
-	return (pid_t)pid;
-}
-
 /**
  * D-Bus callback for the version get method call
  *

mce-dbus.h

@@ -58,7 +58,6 @@ DBusMessage *dbus_send_with_block(const gchar *const service,
 				  const gchar *const interface,
 				  const gchar *const name,
 				  gint timeout, int first_arg_type, ...);
-pid_t dbus_get_pid_from_bus_name(const gchar *const bus_name);
 
 gconstpointer mce_dbus_handler_add_ex(const gchar *const interface,
 				      const gchar *const name,