remove the gpu_thread_num safety

xmrstak/backend/amd/autoAdjust.hpp

@@ -105,7 +105,6 @@ private:
         }
 
 		configTpl.replace("PLATFORMINDEX",std::to_string(platformIndex));
-		configTpl.replace("NUMGPUS",std::to_string(devVec.size()));
 		configTpl.replace("GPUCONFIG",conf);
 		configTpl.write(params::inst().configFileAMD);
 		printer::inst()->print_msg(L0, "AMD: GPU configuration stored in file '%s'", params::inst().configFileAMD.c_str());

xmrstak/backend/amd/config.tpl

 R"===(
-
-/* 
- * Number of GPUs that you have in your system. Each GPU will get its own CPU thread.
- */
-"gpu_thread_num" : NUMGPUS,
-
 /*
  * GPU configuration. You should play around with intensity and worksize as the fastest settings will vary.
  *      index    - GPU index number usually starts from 0