catacomb-python.h: Eliminate redundant declaration of `convgcipher'.

There's another one a bit further down.

diff --git a/catacomb-python.h b/catacomb-python.h
index 0307701..1989cd0 100644 (file)
--- a/catacomb-python.h
+++ b/catacomb-python.h
@@ -503,7 +503,6 @@ extern PyTypeObject *gccipher_pytype;
 #define GCCIPHER_F(o) (((gccipher_pyobj *)(o))->f)
 extern PyObject *gccipher_pywrap(gccipher *);
 extern int convgccipher(PyObject *, void *);
-extern int convgcipher(PyObject *, void *);
 
 typedef struct gcipher_pyobj {
   PyObject_HEAD