how to delete android recyclerview data through php api using retrofit into adaptor?

Question

I try to use the following code but doesn't work at all. When I hit delete button, nothing is happening and query is also not getting deleted.

holder.delete.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
    deletedata();
}

private void deletedata() {
    Retrofit retrofit=new Retrofit.Builder()
            .baseUrl(baseU)
            .addConverterFactory(GsonConverterFactory.create())
            .build();
    myApi=retrofit.create(MyApi.class);
    Call<Modelclass>call=myApi.deleteDate(id);
    call.enqueue(new Callback<Modelclass>() {
        @Override
        public void onResponse(Call<Modelclass> call, Response<Modelclass> response) {
            Toast.makeText(context, "data deleted", Toast.LENGTH_SHORT).show();
        }

        @Override
        public void onFailure(Call<Modelclass> call, Throwable t) {
            Toast.makeText(context, "data not deleted", Toast.LENGTH_SHORT).show();
        }
    });
}