revert max_load_vec_elems (#4671)(#4663)

Author: sunjiweiswift

csrc/gpu/aten/operators/xetla/kernels/include/subgroup/tile/impl/load_xe.hpp

@@ -398,9 +398,9 @@ tile_load(tile_t& tile, payload_t& payload) {
   static constexpr gpu_arch arch_tag = payload_t::arch_tag;
 
   using load_store_attr = load_store_attr_t<msg_type::block_1d, arch_tag>;
-  static constexpr uint32_t max_load_vec_len = std::min(
-      uint32_t(tile_t::block_elems * sizeof(dtype)),
-      load_store_attr::max_load_vec_len);
+
+  static constexpr uint32_t max_load_vec_len =
+      load_store_attr::max_load_vec_len;
 
   static constexpr uint32_t max_load_vec_elems =
       max_load_vec_len / sizeof(dtype);