Automatically delete the unused parameters

[daijh]

The tool will automatically delete the unused parameters.

I'd like to confirm if this is the intended behavior. Is this the expected result by design?

#param b_param
#param a1_param
#param a0_param // unused

$MAIN {
    let var_b = b_param;
    let var_a1 = a1_param;
}  // MAIN

  // Extract parameters
  auto& __param_a1_param = params.param_a1_param;
  auto& __param_b_param = params.param_b_param;

//  1 | 
//  2 | #param b_param
//  3 | #param a1_param
//  4 | #param a0_param
//  5 |