IVGCVSW-4246 Clean build of LayerTests with -Wextra

Change-Id: If3d98e45a6e2fa8e1afd19a4052334335feacf63
Signed-off-by: Derek Lamberti <derek.lamberti@arm.com>
diff --git a/src/backends/backendsCommon/test/layerTests/ConcatTestImpl.cpp b/src/backends/backendsCommon/test/layerTests/ConcatTestImpl.cpp
index 53bfc20..57ed754 100644
--- a/src/backends/backendsCommon/test/layerTests/ConcatTestImpl.cpp
+++ b/src/backends/backendsCommon/test/layerTests/ConcatTestImpl.cpp
@@ -127,6 +127,7 @@
     const T * inputData,
     std::vector<T>& outputData)
 {
+    boost::ignore_unused(memoryManager);
     BOOST_ASSERT_MSG(inputData != nullptr, "inputData must not be null");
     if (inputData == nullptr)
     {
@@ -178,6 +179,7 @@
     unsigned int & concatDim,
     TensorInfo & outputTensorInfo)
 {
+    boost::ignore_unused(memoryManager);
     BOOST_ASSERT_MSG(inputTensorInfos.size() > 1,
         "Expecting more than one tensor to be concatenated here");
 
@@ -1917,6 +1919,8 @@
     const IBackendInternal::IMemoryManagerSharedPtr& memoryManager,
     bool useSubtensor)
 {
+    boost::ignore_unused(memoryManager);
+
     // Defines the tensor descriptors.
     TensorInfo outputTensorInfo({ 3, 6, 3 }, ArmnnType);
     TensorInfo inputTensorInfo1({ 3, 6, 2 }, ArmnnType);
@@ -2070,6 +2074,8 @@
     IWorkloadFactory& workloadFactory,
     const IBackendInternal::IMemoryManagerSharedPtr& memoryManager)
 {
+    boost::ignore_unused(memoryManager);
+
     unsigned int outputWidth = 3;
     unsigned int outputHeight = 6;
     unsigned int outputChannels = 3;
@@ -2341,6 +2347,8 @@
     IWorkloadFactory& workloadFactory,
     const IBackendInternal::IMemoryManagerSharedPtr& memoryManager)
 {
+    boost::ignore_unused(memoryManager);
+
     unsigned int outputWidth = 3;
     unsigned int outputHeight = 6;
     unsigned int outputChannels = 3;
@@ -2484,6 +2492,8 @@
     IWorkloadFactory& workloadFactory,
     const IBackendInternal::IMemoryManagerSharedPtr& memoryManager)
 {
+    boost::ignore_unused(memoryManager);
+
     unsigned int outputWidth = 3;
     unsigned int outputHeight = 6;
     unsigned int outputChannels = 3;
@@ -2620,6 +2630,8 @@
         IWorkloadFactory& workloadFactory,
         const IBackendInternal::IMemoryManagerSharedPtr& memoryManager)
 {
+    boost::ignore_unused(memoryManager);
+
     unsigned int outputWidth = 3;
     unsigned int outputHeight = 6;
     unsigned int outputChannels = 3;