more revert

Author: masahi

include/tvm/tir/stmt_functor.h

@@ -412,7 +412,7 @@ inline T Substitute(T input, const std::unordered_map<const VarNode*, PrimExpr>&
  * children of the node
  */
 TVM_DLL void PreOrderVisit(const ObjectRef& stmt_or_expr,
-                           const std::function<bool(const ObjectRef&)>& fvisit, bool visit_init_block=true);
+                           const std::function<bool(const ObjectRef&)>& fvisit);
 }  // namespace tir
 }  // namespace tvm