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/gdbmmodule.c b/Modules/gdbmmodule.c
index 1da53ff..6e85ed3 100644
--- a/Modules/gdbmmodule.c
+++ b/Modules/gdbmmodule.c
@@ -34,7 +34,7 @@
     GDBM_FILE di_dbm;
 } dbmobject;
 
-staticforward PyTypeObject Dbmtype;
+static PyTypeObject Dbmtype;
 
 #define is_dbmobject(v) ((v)->ob_type == &Dbmtype)
 #define check_dbmobject_open(v) if ((v)->di_dbm == NULL) \