removed duplicate functionality, macro's and functions existed to check a PyObjects type, now only use macro's

source/blender/python/api2_2x/Curve.h

@@ -55,7 +55,6 @@ typedef struct {
 
 PyObject *Curve_Init( void );
 PyObject *Curve_CreatePyObject( struct Curve * curve );
-int Curve_CheckPyObject( PyObject * py_obj );
 struct Curve *Curve_FromPyObject( PyObject * py_obj );
 PyObject *Curve_update( BPy_Curve * self );