COMPMID-1920: Failure exit order destruction when CLTuner enabled.

Creates a profiling queue in every tuning iteration as it gives better
control of the lifetime of the opencl objects.

Change-Id: Id8629cc06086877b088c787cbb5f238c0979b6d9
Signed-off-by: Georgios Pinitas <georgios.pinitas@arm.com>
Reviewed-on: https://review.mlplatform.org/631
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michalis Spyrou <michalis.spyrou@arm.com>
diff --git a/arm_compute/runtime/CL/CLTuner.h b/arm_compute/runtime/CL/CLTuner.h
index f789500..ee83f69 100644
--- a/arm_compute/runtime/CL/CLTuner.h
+++ b/arm_compute/runtime/CL/CLTuner.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2018 ARM Limited.
+ * Copyright (c) 2017-2019 ARM Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -118,10 +118,8 @@
     cl::NDRange find_optimal_lws(ICLKernel &kernel);
 
     std::unordered_map<std::string, cl::NDRange> _lws_table;
-    cl::CommandQueue _queue;
-    cl::CommandQueue _queue_profiler;
-    cl::Event        _kernel_event;
-    bool             _tune_new_kernels;
+    cl::Event _kernel_event;
+    bool      _tune_new_kernels;
 };
-}
+} // namespace arm_compute
 #endif /*__ARM_COMPUTE_CLTUNER_H__ */