Fix misuse of the use_occlusion_test parameter.

source/blender/editors/curve/editcurve.c

@@ -5021,7 +5021,6 @@ static int add_vertex_invoke(bContext *C, wmOperator *op, const wmEvent *event)
 			        &(const struct SnapObjectParams){
 			            .snap_select = (vc.obedit != NULL) ? SNAP_NOT_ACTIVE : SNAP_ALL,
 			            .use_object_edit_cage = false,
-			            .use_occlusion_test = true,
 			        },
 			        mval, NULL,
 			        location, NULL);