Cleanup: remove redundant (void) for functions with no args in C++

source/blender/python/mathutils/mathutils_bvhtree.cc

@@ -156,7 +156,7 @@ static PyObject *py_bvhtree_raycast_to_py(const BVHTreeRayHit *hit)
   return py_retval;
 }
 
-static PyObject *py_bvhtree_raycast_to_py_none(void)
+static PyObject *py_bvhtree_raycast_to_py_none()
 {
   PyObject *py_retval = PyTuple_New(4);
 
@@ -210,7 +210,7 @@ static PyObject *py_bvhtree_nearest_to_py(const BVHTreeNearest *nearest)
   return py_retval;
 }
 
-static PyObject *py_bvhtree_nearest_to_py_none(void)
+static PyObject *py_bvhtree_nearest_to_py_none()
 {
   PyObject *py_retval = PyTuple_New(4);
 
@@ -1324,7 +1324,7 @@ static PyModuleDef bvhtree_moduledef = {
     /*m_free*/ nullptr,
 };
 
-PyMODINIT_FUNC PyInit_mathutils_bvhtree(void)
+PyMODINIT_FUNC PyInit_mathutils_bvhtree()
 {
   PyObject *m = PyModule_Create(&bvhtree_moduledef);