Remove unused variable in VmaBlockVector::AllocatePage

Fixes #101

src/vk_mem_alloc.h

diff --git a/src/vk_mem_alloc.h b/src/vk_mem_alloc.h
index 6f5294b..0e6d420 100644
--- a/src/vk_mem_alloc.h
+++ b/src/vk_mem_alloc.h
@@ -12100,7 +12100,6 @@
     const bool mapped = (createInfo.flags & VMA_ALLOCATION_CREATE_MAPPED_BIT) != 0;

     const bool isUserDataString = (createInfo.flags & VMA_ALLOCATION_CREATE_USER_DATA_COPY_STRING_BIT) != 0;

     

-    const bool withinBudget = (createInfo.flags & VMA_ALLOCATION_CREATE_WITHIN_BUDGET_BIT) != 0;

     VkDeviceSize freeMemory;

     {

         const uint32_t heapIndex = m_hAllocator->MemoryTypeIndexToHeapIndex(m_MemoryTypeIndex);