revert max_load_vec_elems (#323)

Co-authored-by: Swift.Sun <jiwei1.sun@intel.com>

Author: DDEle

include/subgroup/tile/impl/load_xe.hpp

@@ -394,12 +394,10 @@ tile_load(tile_t& tile, payload_t& payload) {
   using dtype = typename payload_t::dtype;
   static constexpr uint32_t load_len = tile_t::tile_elems;
   static constexpr gpu_arch arch_tag = payload_t::arch_tag;
-  static constexpr uint32_t power2_block_elems =
-      detail::getNextPowerOf2<uint32_t(tile_t::block_elems * sizeof(dtype))>();
 
   using load_store_attr = load_store_attr_t<msg_type::block_1d, arch_tag>;
   static constexpr uint32_t max_load_vec_len =
-      std::min(power2_block_elems, load_store_attr::max_aligned_load_vec_len);
+      load_store_attr::max_aligned_load_vec_len;
 
   static constexpr uint32_t max_load_vec_elems =
       max_load_vec_len / sizeof(dtype);