Update default C++ standard to C++14

(3RDPARTY_UPDATE)

Resolves: COMPMID-3849

Signed-off-by: Georgios Pinitas <georgios.pinitas@arm.com>
Change-Id: I6369f112337310140e2d6c8e79630cd11138dfa0
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/4544
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michalis Spyrou <michalis.spyrou@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
diff --git a/src/runtime/NEON/functions/NEArithmeticSubtraction.cpp b/src/runtime/NEON/functions/NEArithmeticSubtraction.cpp
index ba3f426..512cfd6 100644
--- a/src/runtime/NEON/functions/NEArithmeticSubtraction.cpp
+++ b/src/runtime/NEON/functions/NEArithmeticSubtraction.cpp
@@ -25,7 +25,6 @@
 
 #include "arm_compute/core/ITensor.h"
 #include "src/core/NEON/kernels/NEArithmeticSubtractionKernel.h"
-#include "support/MemorySupport.h"
 
 #include <utility>
 
@@ -36,7 +35,7 @@
 void NEArithmeticSubtraction::configure(const ITensorInfo *input1, const ITensorInfo *input2, ITensorInfo *output, ConvertPolicy policy, const ActivationLayerInfo &act_info)
 {
     ARM_COMPUTE_UNUSED(act_info);
-    auto k = arm_compute::support::cpp14::make_unique<NEArithmeticSubtractionKernel>();
+    auto k = std::make_unique<NEArithmeticSubtractionKernel>();
     k->configure(input1, input2, output, policy);
     _kernel = std::move(k);
 }
@@ -57,7 +56,7 @@
 };
 
 NEArithmeticSubtraction::NEArithmeticSubtraction()
-    : _impl(support::cpp14::make_unique<Impl>())
+    : _impl(std::make_unique<Impl>())
 {
 }
 NEArithmeticSubtraction::NEArithmeticSubtraction(NEArithmeticSubtraction &&) = default;
@@ -74,7 +73,7 @@
     _impl->src_0 = input1;
     _impl->src_1 = input2;
     _impl->dst   = output;
-    _impl->op    = arm_compute::support::cpp14::make_unique<experimental::NEArithmeticSubtraction>();
+    _impl->op    = std::make_unique<experimental::NEArithmeticSubtraction>();
     _impl->op->configure(input1->info(), input2->info(), output->info(), policy, act_info);
 }