Revert "Unbreak on BSDs"

Author: adam-sawicki-a

src/vk_mem_alloc.h

@@ -2229,6 +2229,10 @@ remove them if not needed.
 #include <mutex> // for std::mutex
 #include <atomic> // for std::atomic
 
+#if !defined(_WIN32) && !defined(__APPLE__)
+    #include <malloc.h> // for aligned_alloc()
+#endif
+
 #ifndef VMA_NULL
    // Value used as null pointer. Define it to e.g.: nullptr, NULL, 0, (void*)0.
    #define VMA_NULL   nullptr