Merge pull request #8152 from lioncash/array-size

Common/CommonFuncs: Remove now-unneccessary ArraySize function

Source/Core/Common/CommonFuncs.h

@@ -4,17 +4,9 @@
 
 #pragma once
 
-#include <cstddef>
 #include <string>
 #include "Common/CommonTypes.h"
 
-// Will fail to compile on a non-array:
-template <typename T, size_t N>
-constexpr size_t ArraySize(T (&arr)[N])
-{
-  return N;
-}
-
 #ifndef _WIN32
 
 // go to debugger mode