rm debug used files

library/src/tensor_operation_instance/gpu/gemm_multiply_multiply/device_gemm_multiply_multiply_xdl_f8_f8_bf16/device_gemm_multiply_multiply_xdl_f8_f8_bf16_mk_nk_mn.hpp

@@ -15,7 +15,6 @@ namespace instance {
 
 using F8   = f8_t;
 using BF16 = bhalf_t;
-using F16 = half_t;
 using F32  = float;
 
 using Row = tensor_layout::gemm::RowMajor;