Update to pysqlite 2.2.0
diff --git a/Modules/_sqlite/util.h b/Modules/_sqlite/util.h
index 6e74b2d..e99a4dd 100644
--- a/Modules/_sqlite/util.h
+++ b/Modules/_sqlite/util.h
@@ -1,6 +1,6 @@
 /* util.h - various utility functions
  *
- * Copyright (C) 2005 Gerhard Häring <gh@ghaering.de>
+ * Copyright (C) 2005-2006 Gerhard Häring <gh@ghaering.de>
  *
  * This file is part of pysqlite.
  *
@@ -28,8 +28,6 @@
 #include "sqlite3.h"
 #include "connection.h"
 
-void pysqlite_sleep(double seconds);
-
 int _sqlite_step_with_busyhandler(sqlite3_stmt* statement, Connection* connection);
 
 /**