staticforward bites the dust.

The staticforward define was needed to support certain broken C
compilers (notably SCO ODT 3.0, perhaps early AIX as well) botched the
static keyword when it was used with a forward declaration of a static
initialized structure.  Standard C allows the forward declaration with
static, and we've decided to stop catering to broken C compilers.  (In
fact, we expect that the compilers are all fixed eight years later.)

I'm leaving staticforward and statichere defined in object.h as
static.  This is only for backwards compatibility with C extensions
that might still use it.

XXX I haven't updated the documentation.
diff --git a/Modules/threadmodule.c b/Modules/threadmodule.c
index aa9d3c9..b872dd0 100644
--- a/Modules/threadmodule.c
+++ b/Modules/threadmodule.c
@@ -22,7 +22,7 @@
 	PyThread_type_lock lock_lock;
 } lockobject;
 
-staticforward PyTypeObject Locktype;
+static PyTypeObject Locktype;
 
 static lockobject *
 newlockobject(void)