Removed unused functions VmaQuickSort, VmaQuickSortPartition

Closes #262. Thanks @laurelkeys !
diff --git a/include/vk_mem_alloc.h b/include/vk_mem_alloc.h
index 904fd62..9a639c1 100644
--- a/include/vk_mem_alloc.h
+++ b/include/vk_mem_alloc.h
@@ -3377,44 +3377,6 @@
     return pStr == VMA_NULL || *pStr == '\0';

 }

 

-#ifndef VMA_SORT

-template<typename Iterator, typename Compare>

-Iterator VmaQuickSortPartition(Iterator beg, Iterator end, Compare cmp)

-{

-    Iterator centerValue = end; --centerValue;

-    Iterator insertIndex = beg;

-    for (Iterator memTypeIndex = beg; memTypeIndex < centerValue; ++memTypeIndex)

-    {

-        if (cmp(*memTypeIndex, *centerValue))

-        {

-            if (insertIndex != memTypeIndex)

-            {

-                VMA_SWAP(*memTypeIndex, *insertIndex);

-            }

-            ++insertIndex;

-        }

-    }

-    if (insertIndex != centerValue)

-    {

-        VMA_SWAP(*insertIndex, *centerValue);

-    }

-    return insertIndex;

-}

-

-template<typename Iterator, typename Compare>

-void VmaQuickSort(Iterator beg, Iterator end, Compare cmp)

-{

-    if (beg < end)

-    {

-        Iterator it = VmaQuickSortPartition<Iterator, Compare>(beg, end, cmp);

-        VmaQuickSort<Iterator, Compare>(beg, it, cmp);

-        VmaQuickSort<Iterator, Compare>(it + 1, end, cmp);

-    }

-}

-

-#define VMA_SORT(beg, end, cmp) VmaQuickSort(beg, end, cmp)

-#endif // VMA_SORT

-

 /*

 Returns true if two memory blocks occupy overlapping pages.

 ResourceA must be in less memory offset than ResourceB.