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/Allocator.cpp b/src/runtime/Allocator.cpp
index 12478be..ef7c62d 100644
--- a/src/runtime/Allocator.cpp
+++ b/src/runtime/Allocator.cpp
@@ -25,7 +25,6 @@
 #include "arm_compute/runtime/MemoryRegion.h"
 
 #include "arm_compute/core/Error.h"
-#include "support/MemorySupport.h"
 
 #include <cstddef>
 
@@ -44,5 +43,5 @@
 
 std::unique_ptr<IMemoryRegion> Allocator::make_region(size_t size, size_t alignment)
 {
-    return arm_compute::support::cpp14::make_unique<MemoryRegion>(size, alignment);
+    return std::make_unique<MemoryRegion>(size, alignment);
 }