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/CL/ICLSimpleFunction.cpp b/src/runtime/CL/ICLSimpleFunction.cpp
index b075aa1..4530537 100644
--- a/src/runtime/CL/ICLSimpleFunction.cpp
+++ b/src/runtime/CL/ICLSimpleFunction.cpp
@@ -28,13 +28,12 @@
 #include "arm_compute/runtime/CL/CLScheduler.h"
 #include "src/core/CL/ICLKernel.h"
 #include "src/core/CL/kernels/CLFillBorderKernel.h"
-#include "support/MemorySupport.h"
 
 using namespace arm_compute;
 
 ICLSimpleFunction::ICLSimpleFunction(CLRuntimeContext *ctx) // NOLINT
     : _kernel(),
-      _border_handler(support::cpp14::make_unique<CLFillBorderKernel>()),
+      _border_handler(std::make_unique<CLFillBorderKernel>()),
       _ctx(ctx)
 {
 }