Legacy cleanup, part 2 (#3659)

* Legacy cleanup, part 2

There are still things that can be removed, those will be likely done in part three:
`The Return of the Cleanup` :)

Signed-off-by: nemerle <96597+nemerle@users.noreply.github.com>

* Fix windows build

Somehow there were some unfixed errors from enabled warnings?
I'm unsure if I've pulled repo in unstable state, or those were somehow
missed.

Signed-off-by: nemerle <96597+nemerle@users.noreply.github.com>

Code/Legacy/CrySystem/SimpleStringPool.h

@@ -12,7 +12,7 @@
 #pragma once
 
 #include "ISystem.h"
-
+#include <CryCommon/CryLegacyAllocator.h>
 #include <StlUtils.h>
 
 //TODO: Pull most of this into a cpp file!
@@ -265,23 +265,6 @@ public:
         return ret;
     }
 
-    void GetMemoryUsage(ICrySizer* pSizer) const
-    {
-        BLOCK* pBlock = m_blocks;
-        while (pBlock)
-        {
-            pSizer->AddObject(pBlock, offsetof(BLOCK, s) + pBlock->size * sizeof(char));
-            pBlock = pBlock->next;
-        }
-
-        pBlock = m_free_blocks;
-        while (pBlock)
-        {
-            pSizer->AddObject(pBlock, offsetof(BLOCK, s) + pBlock->size * sizeof(char));
-            pBlock = pBlock->next;
-        }
-    }
-
 private:
     CSimpleStringPool(const CSimpleStringPool&);
     CSimpleStringPool& operator = (const CSimpleStringPool&);