Address more review comments

Author: asudarsa

sycl/plugins/level_zero/pi_level_zero.cpp

@@ -92,9 +92,9 @@ static const std::pair<int, int> getRangeOfAllowedCopyEngines = [] {
 }();
 
 static const bool CopyEngineRequested = [] {
-  const char *CopyEngine = std::getenv("SYCL_PI_LEVEL_ZERO_USE_COPY_ENGINE");
-  bool UseCopyEngine = (!CopyEngine || (std::stoi(CopyEngine) != 0));
-  return UseCopyEngine;
+  int LowerCopyQueueIndex = getRangeOfAllowedCopyEngines.first;
+  int UpperCopyQueueIndex = getRangeOfAllowedCopyEngines.second;
+  return ((LowerCopyQueueIndex != -1) || (UpperCopyQueueIndex != -1));
 }();
 
 // This class encapsulates actions taken along with a call to Level Zero API.