COMPMID-3069: Silence clang-8 warning wrt explicit default of deleted operator

Signed-off-by: Matthew Bentham <matthew.bentham@arm.com>
Change-Id: Ib94d2770dd7991a1d5aa5e63edcc96714b183033
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/c/VisualCompute/ComputeLibrary/+/229015
Tested-by: bsgcomp <bsgcomp@arm.com>
Reviewed-by: Michalis Spyrou <michalis.spyrou@arm.com>
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/2851
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
diff --git a/arm_compute/runtime/NEON/functions/NEGenerateProposalsLayer.h b/arm_compute/runtime/NEON/functions/NEGenerateProposalsLayer.h
index 0e23689..7c470fb 100644
--- a/arm_compute/runtime/NEON/functions/NEGenerateProposalsLayer.h
+++ b/arm_compute/runtime/NEON/functions/NEGenerateProposalsLayer.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019 ARM Limited.
+ * Copyright (c) 2019-2020 ARM Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -64,12 +64,8 @@
     NEGenerateProposalsLayer(std::shared_ptr<IMemoryManager> memory_manager = nullptr);
     /** Prevent instances of this class from being copied (As this class contains pointers) */
     NEGenerateProposalsLayer(const NEGenerateProposalsLayer &) = delete;
-    /** Default move constructor */
-    NEGenerateProposalsLayer(NEGenerateProposalsLayer &&) = default;
     /** Prevent instances of this class from being copied (As this class contains pointers) */
     NEGenerateProposalsLayer &operator=(const NEGenerateProposalsLayer &) = delete;
-    /** Default move assignment operator */
-    NEGenerateProposalsLayer &operator=(NEGenerateProposalsLayer &&) = default;
 
     /** Set the input and output tensors.
      *